Commit Graph

117 Commits

Author SHA1 Message Date
Nathan Chancellor a626beca4c This is the 3.10.105 stable release
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Merge 3.10.105 into android-msm-bullhead-3.10-oreo-m5

Changes in 3.10.105: (315 commits)
        sched/core: Fix a race between try_to_wake_up() and a woken up task
        sched/core: Fix an SMP ordering race in try_to_wake_up() vs. schedule()
        crypto: algif_skcipher - Require setkey before accept(2)
        crypto: af_alg - Disallow bind/setkey/... after accept(2)
        crypto: af_alg - Add nokey compatibility path
        crypto: algif_skcipher - Add nokey compatibility path
        crypto: hash - Add crypto_ahash_has_setkey
        crypto: shash - Fix has_key setting
        crypto: algif_hash - Require setkey before accept(2)
        crypto: skcipher - Add crypto_skcipher_has_setkey
        crypto: algif_skcipher - Add key check exception for cipher_null
        crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
        crypto: algif_hash - Remove custom release parent function
        crypto: algif_skcipher - Remove custom release parent function
        crypto: af_alg - Forbid bind(2) when nokey child sockets are present
        crypto: algif_hash - Fix race condition in hash_check_key
        crypto: algif_skcipher - Fix race condition in skcipher_check_key
        crypto: algif_skcipher - Load TX SG list after waiting
        crypto: cryptd - initialize child shash_desc on import
        crypto: skcipher - Fix blkcipher walk OOM crash
        crypto: gcm - Fix IV buffer size in crypto_gcm_setkey
        MIPS: KVM: Fix unused variable build warning
        KVM: MIPS: Precalculate MMIO load resume PC
        KVM: MIPS: Drop other CPU ASIDs on guest MMU changes
        KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write
        KVM: MIPS: Make ERET handle ERL before EXL
        KVM: x86: fix wbinvd_dirty_mask use-after-free
        KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
        KVM: Disable irq while unregistering user notifier
        PM / devfreq: Fix incorrect type issue.
        ppp: defer netns reference release for ppp channel
        x86/mm/xen: Suppress hugetlbfs in PV guests
        xen: Add RING_COPY_REQUEST()
        xen-netback: don't use last request to determine minimum Tx credit
        xen-netback: use RING_COPY_REQUEST() throughout
        xen-blkback: only read request operation from shared ring once
        xen/pciback: Save xen_pci_op commands before processing it
        xen/pciback: Save the number of MSI-X entries to be copied later.
        xen/pciback: Return error on XEN_PCI_OP_enable_msi when device has MSI or MSI-X enabled
        xen/pciback: Return error on XEN_PCI_OP_enable_msix when device has MSI or MSI-X enabled
        xen/pciback: Do not install an IRQ handler for MSI interrupts.
        xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has MSI(X) enabled.
        xen/pciback: Don't allow MSI-X ops if PCI_COMMAND_MEMORY is not set.
        xen-pciback: Add name prefix to global 'permissive' variable
        x86/xen: fix upper bound of pmd loop in xen_cleanhighmap()
        x86/traps: Ignore high word of regs->cs in early_idt_handler_common
        x86/mm: Disable preemption during CR3 read+write
        x86/apic: Do not init irq remapping if ioapic is disabled
        x86/mm/pat, /dev/mem: Remove superfluous error message
        x86/paravirt: Do not trace _paravirt_ident_*() functions
        x86/build: Build compressed x86 kernels as PIE
        x86/um: reuse asm-generic/barrier.h
        iommu/amd: Update Alias-DTE in update_device_table()
        iommu/amd: Free domain id when free a domain of struct dma_ops_domain
        ARM: 8616/1: dt: Respect property size when parsing CPUs
        ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
        ARM: sa1100: clear reset status prior to reboot
        ARM: sa1111: fix pcmcia suspend/resume
        arm64: avoid returning from bad_mode
        arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
        arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb()
        arm64: debug: avoid resetting stepping state machine when TIF_SINGLESTEP
        MIPS: Malta: Fix IOCU disable switch read for MIPS64
        MIPS: ptrace: Fix regs_return_value for kernel context
        powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET
        powerpc/vdso64: Use double word compare on pointers
        powerpc/powernv: Use CPU-endian PEST in pnv_pci_dump_p7ioc_diag_data()
        powerpc/64: Fix incorrect return value from __copy_tofrom_user
        powerpc/nvram: Fix an incorrect partition merge
        avr32: fix copy_from_user()
        avr32: fix 'undefined reference to `___copy_from_user'
        avr32: off by one in at32_init_pio()
        s390/dasd: fix hanging device after clear subchannel
        parisc: Ensure consistent state when switching to kernel stack at syscall entry
        microblaze: fix __get_user()
        microblaze: fix copy_from_user()
        mn10300: failing __get_user() and get_user() should zero
        m32r: fix __get_user()
        sh64: failing __get_user() should zero
        score: fix __get_user/get_user
        s390: get_user() should zero on failure
        ARC: uaccess: get_user to zero out dest in cause of fault
        asm-generic: make get_user() clear the destination on errors
        frv: fix clear_user()
        cris: buggered copy_from_user/copy_to_user/clear_user
        blackfin: fix copy_from_user()
        score: fix copy_from_user() and friends
        sh: fix copy_from_user()
        hexagon: fix strncpy_from_user() error return
        mips: copy_from_user() must zero the destination on access_ok() failure
        asm-generic: make copy_from_user() zero the destination properly
        alpha: fix copy_from_user()
        metag: copy_from_user() should zero the destination on access_ok() failure
        parisc: fix copy_from_user()
        openrisc: fix copy_from_user()
        openrisc: fix the fix of copy_from_user()
        mn10300: copy_from_user() should zero on access_ok() failure...
        sparc32: fix copy_from_user()
        ppc32: fix copy_from_user()
        ia64: copy_from_user() should zero the destination on access_ok() failure
        fix fault_in_multipages_...() on architectures with no-op access_ok()
        fix memory leaks in tracing_buffers_splice_read()
        arc: don't leak bits of kernel stack into coredump
        Fix potential infoleak in older kernels
        swapfile: fix memory corruption via malformed swapfile
        coredump: fix unfreezable coredumping task
        usb: dwc3: gadget: increment request->actual once
        USB: validate wMaxPacketValue entries in endpoint descriptors
        USB: fix typo in wMaxPacketSize validation
        usb: xhci: Fix panic if disconnect
        USB: serial: fix memleak in driver-registration error path
        USB: kobil_sct: fix non-atomic allocation in write path
        USB: serial: mos7720: fix non-atomic allocation in write path
        USB: serial: mos7840: fix non-atomic allocation in write path
        usb: renesas_usbhs: fix clearing the {BRDY,BEMP}STS condition
        USB: change bInterval default to 10 ms
        usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
        USB: serial: cp210x: fix hardware flow-control disable
        usb: misc: legousbtower: Fix NULL pointer deference
        usb: gadget: function: u_ether: don't starve tx request queue
        USB: serial: cp210x: fix tiocmget error handling
        usb: gadget: u_ether: remove interrupt throttling
        usb: chipidea: move the lock initialization to core file
        Fix USB CB/CBI storage devices with CONFIG_VMAP_STACK=y
        ALSA: rawmidi: Fix possible deadlock with virmidi registration
        ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
        ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
        ALSA: timer: fix NULL pointer dereference on memory allocation failure
        ALSA: ali5451: Fix out-of-bound position reporting
        ALSA: pcm : Call kill_fasync() in stream lock
        zfcp: fix fc_host port_type with NPIV
        zfcp: fix ELS/GS request&response length for hardware data router
        zfcp: close window with unblocked rport during rport gone
        zfcp: retain trace level for SCSI and HBA FSF response records
        zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace
        zfcp: trace on request for open and close of WKA port
        zfcp: restore tracing of handle for port and LUN with HBA records
        zfcp: fix D_ID field with actual value on tracing SAN responses
        zfcp: fix payload trace length for SAN request&response
        zfcp: trace full payload of all SAN records (req,resp,iels)
        scsi: zfcp: spin_lock_irqsave() is not nestable
        scsi: mpt3sas: Fix secure erase premature termination
        scsi: mpt3sas: Unblock device after controller reset
        scsi: mpt3sas: fix hang on ata passthrough commands
        mpt2sas: Fix secure erase premature termination
        scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices
        scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression
        scsi: ibmvfc: Fix I/O hang when port is not mapped
        scsi: Fix use-after-free
        scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer()
        scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded
        scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware
        ext4: validate that metadata blocks do not overlap superblock
        ext4: avoid modifying checksum fields directly during checksum verification
        ext4: use __GFP_NOFAIL in ext4_free_blocks()
        ext4: reinforce check of i_dtime when clearing high fields of uid and gid
        ext4: allow DAX writeback for hole punch
        ext4: sanity check the block and cluster size at mount time
        reiserfs: fix "new_insert_key may be used uninitialized ..."
        reiserfs: Unlock superblock before calling reiserfs_quota_on_mount()
        xfs: fix superblock inprogress check
        libxfs: clean up _calc_dquots_per_chunk
        btrfs: ensure that file descriptor used with subvol ioctls is a dir
        ocfs2/dlm: fix race between convert and migration
        ocfs2: fix start offset to ocfs2_zero_range_for_truncate()
        ubifs: Fix assertion in layout_in_gaps()
        ubifs: Fix xattr_names length in exit paths
        UBIFS: Fix possible memory leak in ubifs_readdir()
        ubifs: Abort readdir upon error
        ubifs: Fix regression in ubifs_readdir()
        UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header
        NFSv4.x: Fix a refcount leak in nfs_callback_up_net
        NFSD: Using free_conn free connection
        NFS: Don't drop CB requests with invalid principals
        NFSv4: Open state recovery must account for file permission changes
        fs/seq_file: fix out-of-bounds read
        fs/super.c: fix race between freeze_super() and thaw_super()
        isofs: Do not return EACCES for unknown filesystems
        hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
        driver core: Delete an unnecessary check before the function call "put_device"
        driver core: fix race between creating/querying glue dir and its cleanup
        drm/radeon: fix radeon_move_blit on 32bit systems
        drm: Reject page_flip for !DRIVER_MODESET
        drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on
        qxl: check for kmap failures
        Input: i8042 - break load dependency between atkbd/psmouse and i8042
        Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
        Input: ili210x - fix permissions on "calibrate" attribute
        hwrng: exynos - Disable runtime PM on probe failure
        hwrng: omap - Fix assumption that runtime_get_sync will always succeed
        hwrng: omap - Only fail if pm_runtime_get_sync returns < 0
        i2c-eg20t: fix race between i2c init and interrupt enable
        em28xx-i2c: rt_mutex_trylock() returns zero on failure
        i2c: core: fix NULL pointer dereference under race condition
        i2c: at91: fix write transfers by clearing pending interrupt first
        iio: accel: kxsd9: Fix raw read return
        iio: accel: kxsd9: Fix scaling bug
        thermal: hwmon: Properly report critical temperature in sysfs
        cdc-acm: fix wrong pipe type on rx interrupt xfers
        timers: Use proper base migration in add_timer_on()
        EDAC: Increment correct counter in edac_inc_ue_error()
        IB/ipoib: Fix memory corruption in ipoib cm mode connect flow
        IB/core: Fix use after free in send_leave function
        IB/ipoib: Don't allow MC joins during light MC flush
        IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV
        IB/mlx4: Fix create CQ error flow
        IB/uverbs: Fix leak of XRC target QPs
        IB/cm: Mark stale CM id's whenever the mad agent was unregistered
        mtd: blkdevs: fix potential deadlock + lockdep warnings
        mtd: pmcmsp-flash: Allocating too much in init_msp_flash()
        mtd: nand: davinci: Reinitialize the HW ECC engine in 4bit hwctl
        perf symbols: Fixup symbol sizes before picking best ones
        perf: Tighten (and fix) the grouping condition
        tty: Prevent ldisc drivers from re-using stale tty fields
        tty: limit terminal size to 4M chars
        tty: vt, fix bogus division in csi_J
        vt: clear selection before resizing
        drivers/vfio: Rework offsetofend()
        include/stddef.h: Move offsetofend() from vfio.h to a generic kernel header
        stddef.h: move offsetofend inside #ifndef/#endif guard, neaten
        ipv6: don't call fib6_run_gc() until routing is ready
        ipv6: split duplicate address detection and router solicitation timer
        ipv6: move DAD and addrconf_verify processing to workqueue
        ipv6: addrconf: fix dev refcont leak when DAD failed
        ipv6: fix rtnl locking in setsockopt for anycast and multicast
        ip6_gre: fix flowi6_proto value in ip6gre_xmit_other()
        ipv6: correctly add local routes when lo goes up
        ipv6: dccp: fix out of bound access in dccp_v6_err()
        ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped
        ip6_tunnel: Clear IP6CB in ip6tunnel_xmit()
        ip6_tunnel: disable caching when the traffic class is inherited
        net/irda: handle iriap_register_lsap() allocation failure
        tcp: fix use after free in tcp_xmit_retransmit_queue()
        tcp: properly scale window in tcp_v[46]_reqsk_send_ack()
        tcp: fix overflow in __tcp_retransmit_skb()
        tcp: fix wrong checksum calculation on MTU probing
        tcp: take care of truncations done by sk_filter()
        bonding: Fix bonding crash
        net: ratelimit warnings about dst entry refcount underflow or overflow
        mISDN: Support DR6 indication in mISDNipac driver
        mISDN: Fixing missing validation in base_sock_bind()
        net: disable fragment reassembly if high_thresh is set to zero
        ipvs: count pre-established TCP states as active
        iwlwifi: pcie: fix access to scratch buffer
        svc: Avoid garbage replies when pc_func() returns rpc_drop_reply
        brcmsmac: Free packet if dma_mapping_error() fails in dma_rxfill
        brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get()
        brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap()
        pstore: Fix buffer overflow while write offset equal to buffer size
        net/mlx4_core: Allow resetting VF admin mac to zero
        firewire: net: guard against rx buffer overflows
        firewire: net: fix fragmented datagram_size off-by-one
        netfilter: fix namespace handling in nf_log_proc_dostring
        can: bcm: fix warning in bcm_connect/proc_register
        net: fix sk_mem_reclaim_partial()
        net: avoid sk_forward_alloc overflows
        ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route
        packet: call fanout_release, while UNREGISTERING a netdev
        net: sctp, forbid negative length
        sctp: validate chunk len before actually using it
        net: clear sk_err_soft in sk_clone_lock()
        net: mangle zero checksum in skb_checksum_help()
        dccp: do not send reset to already closed sockets
        dccp: fix out of bound access in dccp_v4_err()
        sctp: assign assoc_id earlier in __sctp_connect
        neigh: check error pointer instead of NULL for ipv4_neigh_lookup()
        ipv4: use new_gw for redirect neigh lookup
        mac80211: fix purging multicast PS buffer queue
        mac80211: discard multicast and 4-addr A-MSDUs
        cfg80211: limit scan results cache size
        mwifiex: printk() overflow with 32-byte SSIDs
        ipv4: Set skb->protocol properly for local output
        net: sky2: Fix shutdown crash
        kaweth: fix firmware download
        tracing: Move mutex to protect against resetting of seq data
        kernel/fork: fix CLONE_CHILD_CLEARTID regression in nscd
        Revert "ipc/sem.c: optimize sem_lock()"
        cfq: fix starvation of asynchronous writes
        drbd: Fix kernel_sendmsg() usage - potential NULL deref
        lib/genalloc.c: start search from start of chunk
        tools/vm/slabinfo: fix an unintentional printf
        rcu: Fix soft lockup for rcu_nocb_kthread
        ratelimit: fix bug in time interval by resetting right begin time
        mfd: core: Fix device reference leak in mfd_clone_cell
        PM / sleep: fix device reference leak in test_suspend
        mmc: mxs: Initialize the spinlock prior to using it
        mmc: block: don't use CMD23 with very old MMC cards
        pstore/core: drop cmpxchg based updates
        pstore/ram: Use memcpy_toio instead of memcpy
        pstore/ram: Use memcpy_fromio() to save old buffer
        mb86a20s: fix the locking logic
        mb86a20s: fix demod settings
        cx231xx: don't return error on success
        cx231xx: fix GPIOs for Pixelview SBTVD hybrid
        gpio: mpc8xxx: Correct irq handler function
        uio: fix dmem_region_start computation
        KEYS: Fix short sprintf buffer in /proc/keys show function
        hv: do not lose pending heartbeat vmbus packets
        staging: iio: ad5933: avoid uninitialized variable in error case
        mei: bus: fix received data size check in NFC fixup
        ACPI / APEI: Fix incorrect return value of ghes_proc()
        PCI: Handle read-only BARs on AMD CS553x devices
        tile: avoid using clocksource_cyc2ns with absolute cycle count
        dm flakey: fix reads to be issued if drop_writes configured
        mm,ksm: fix endless looping in allocating memory when ksm enable
        can: dev: fix deadlock reported after bus-off
        hwmon: (adt7411) set bit 3 in CFG1 register
        mpi: Fix NULL ptr dereference in mpi_powm() [ver #3]
        mfd: 88pm80x: Double shifting bug in suspend/resume
        ASoC: omap-mcpdm: Fix irq resource handling
        regulator: tps65910: Work around silicon erratum SWCZ010
        dm: mark request_queue dead before destroying the DM device
        fbdev/efifb: Fix 16 color palette entry calculation
        metag: Only define atomic_dec_if_positive conditionally
        Linux 3.10.105

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Conflicts:
	arch/arm/mach-sa1100/generic.c
	arch/arm64/kernel/traps.c
	crypto/blkcipher.c
	drivers/devfreq/devfreq.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/gadget/u_ether.c
	fs/ubifs/dir.c
	include/net/if_inet6.h
	lib/genalloc.c
	net/ipv6/addrconf.c
	net/ipv6/tcp_ipv6.c
	net/wireless/scan.c
	sound/core/timer.c
2018-01-25 17:45:32 -07:00
Nick Desaulniers 5c12b58822 BACKPORT: BACKPORT: uio: fix potential use after free issue when accessing debug_buffer
The variable debug_buffer is a global variable which is allocated
and free'd when open/close is called on debugfs file -
"/sys/kernel/debug/rmt_storage/info". The current code doesn't
have locks to handle concurrent accesses to the above file.
This results into use after free issue when debug_buffer is
accessed by two threads at the same time. Fix this by adding
a mutex lock to protect this global variable.

Change-Id: I6bc3f0ae2d7fca3ca9fe8561612f5863b6c3268a
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Bug: 33845464
2017-03-16 00:54:42 +00:00
Jan Viktorin a6e9fafcb7 uio: fix dmem_region_start computation
commit 4d31a2588ae37a5d0f61f4d956454e9504846aeb upstream.

The variable i contains a total number of resources (including
IORESOURCE_IRQ). However, we want the dmem_region_start to point
after the last resource of type IORESOURCE_MEM. The original behaviour
leads (very likely) to skipping several UIO mapping regions and makes
them useless. Fix this by computing dmem_region_start from the uiomem
which points to the last used UIO mapping.

Fixes: 0a0c3b5a24 ("Add new uio device for dynamic memory allocation")

Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2017-02-10 11:04:03 +01:00
Nikhilesh Reddy 5264159dd7 uio: msm_sharedmem: Add custom mmap
Uio's default mmap for physical memory uses
pgprot_noncached which is strongly ordered.

Using pgprot_writecombine would allow for
unalligned access.

Add a custom mmap function when registering uio
to allow unalligned access to the mmaped
region.

Change-Id: If314eade4913bafd53d2b4abc6b205385e29dfd3
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
2014-11-06 16:33:19 -08:00
Nikhilesh Reddy 02d5528784 uio: msm_sharedmem: Restrict debugfs write to root.
Restrict the write permissions to the debugfs entries
only to the root user and set the permissions as 0200.

Change-Id: I5339cf531de7b26dacffe5c3e9010ee892193bb1
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
2014-10-21 17:21:07 -07:00
Nikhilesh Reddy de961fc79d uio: msm_sharedmem: Return ENOMEM if the shared mem addr is zero.
Add checks to return ENOMEM if the shared mem addr is zero.

Change-Id: I1905b28c133187bdf7c33eb44d110a70dbfb2fd6
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
2014-08-27 16:34:42 -07:00
Nikhilesh Reddy b974ce6445 uio: msm_sharedmem: Add addtional information to debugfs
Add an addtional line to the debugfs info printed to indicate
if the address in that entry was allocated dynamically or
is a static entry in the device tree.

Change-Id: Idd41acac9f15bec68d5692fe85175b42a1e90431
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
2014-06-18 18:00:36 -07:00
Nikhilesh Reddy c46af54795 uio: msm_sharedmem: Add support for dynamic shared memory allocation
The shared memory regions used for the UIO devices use physical
addresses that are hardcoded in the device tree which creates a
dependency on the memory map.

Add support to dynamically allocate uncached physically contiguous
memory for the shared buffer at device probe and allow clients (remote-
fs and rfsa) to request this shared buffer address through Kernel QMI
and remove this dependency.

Change-Id: I481f0863db02964336fd461045b5e944ae4f8f2a
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
2014-05-08 10:34:11 -07:00
Ian Maund f1b32d4e47 Merge upstream linux-stable v3.10.28 into msm-3.10
The following commits have been reverted from this merge, as they are
known to introduce new bugs and are currently incompatible with our
audio implementation. Investigation of these commits is ongoing, and
they are expected to be brought in at a later time:

86e6de7 ALSA: compress: fix drain calls blocking other compress functions (v6)
16442d4 ALSA: compress: fix drain calls blocking other compress functions

This merge commit also includes a change in block, necessary for
compilation. Upstream has modified elevator_init_fn to prevent race
conditions, requring updates to row_init_queue and test_init_queue.

* commit 'v3.10.28': (1964 commits)
  Linux 3.10.28
  ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
  drm/i915: Don't grab crtc mutexes in intel_modeset_gem_init()
  serial: amba-pl011: use port lock to guard control register access
  mm: Make {,set}page_address() static inline if WANT_PAGE_VIRTUAL
  md/raid5: Fix possible confusion when multiple write errors occur.
  md/raid10: fix two bugs in handling of known-bad-blocks.
  md/raid10: fix bug when raid10 recovery fails to recover a block.
  md: fix problem when adding device to read-only array with bitmap.
  drm/i915: fix DDI PLLs HW state readout code
  nilfs2: fix segctor bug that causes file system corruption
  thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only
  ftrace/x86: Load ftrace_ops in parameter not the variable holding it
  SELinux: Fix possible NULL pointer dereference in selinux_inode_permission()
  writeback: Fix data corruption on NFS
  hwmon: (coretemp) Fix truncated name of alarm attributes
  vfs: In d_path don't call d_dname on a mount point
  staging: comedi: adl_pci9111: fix incorrect irq passed to request_irq()
  staging: comedi: addi_apci_1032: fix subdevice type/flags bug
  mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfully
  GFS2: Increase i_writecount during gfs2_setattr_chown
  perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10h
  perf scripting perl: Fix build error on Fedora 12
  ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
  Linux 3.10.27
  sched: Guarantee new group-entities always have weight
  sched: Fix hrtimer_cancel()/rq->lock deadlock
  sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining
  sched: Fix race on toggling cfs_bandwidth_used
  x86, fpu, amd: Clear exceptions in AMD FXSAVE workaround
  netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
  SCSI: sd: Reduce buffer size for vpd request
  intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
  mac80211: move "bufferable MMPDU" check to fix AP mode scan
  ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
  ACPI / TPM: fix memory leak when walking ACPI namespace
  mfd: rtsx_pcr: Disable interrupts before cancelling delayed works
  clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
  clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
  clk: samsung: exynos4: Correct SRC_MFC register
  clk: clk-divider: fix divisor > 255 bug
  ahci: add PCI ID for Marvell 88SE9170 SATA controller
  parisc: Ensure full cache coherency for kmap/kunmap
  drm/nouveau/bios: make jump conditional
  ARM: shmobile: mackerel: Fix coherent DMA mask
  ARM: shmobile: armadillo: Fix coherent DMA mask
  ARM: shmobile: kzm9g: Fix coherent DMA mask
  ARM: dts: exynos5250: Fix MDMA0 clock number
  ARM: fix "bad mode in ... handler" message for undefined instructions
  ARM: fix footbridge clockevent device
  net: Loosen constraints for recalculating checksum in skb_segment()
  bridge: use spin_lock_bh() in br_multicast_set_hash_max
  netpoll: Fix missing TXQ unlock and and OOPS.
  net: llc: fix use after free in llc_ui_recvmsg
  virtio-net: fix refill races during restore
  virtio_net: don't leak memory or block when too many frags
  virtio-net: make all RX paths handle errors consistently
  virtio_net: fix error handling for mergeable buffers
  vlan: Fix header ops passthru when doing TX VLAN offload.
  net: rose: restore old recvmsg behavior
  rds: prevent dereference of a NULL device
  ipv6: always set the new created dst's from in ip6_rt_copy
  net: fec: fix potential use after free
  hamradio/yam: fix info leak in ioctl
  drivers/net/hamradio: Integer overflow in hdlcdrv_ioctl()
  net: inet_diag: zero out uninitialized idiag_{src,dst} fields
  ip_gre: fix msg_name parsing for recvfrom/recvmsg
  net: unix: allow bind to fail on mutex lock
  ipv6: fix illegal mac_header comparison on 32bit
  netvsc: don't flush peers notifying work during setting mtu
  tg3: Initialize REG_BASE_ADDR at PCI config offset 120 to 0
  net: unix: allow set_peek_off to fail
  net: drop_monitor: fix the value of maxattr
  ipv6: don't count addrconf generated routes against gc limit
  packet: fix send path when running with proto == 0
  virtio: delete napi structures from netdev before releasing memory
  macvtap: signal truncated packets
  tun: update file current position
  macvtap: update file current position
  macvtap: Do not double-count received packets
  rds: prevent BUG_ON triggered on congestion update to loopback
  net: do not pretend FRAGLIST support
  IPv6: Fixed support for blackhole and prohibit routes
  HID: Revert "Revert "HID: Fix logitech-dj: missing Unifying device issue""
  gpio-rcar: R-Car GPIO IRQ share interrupt
  clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast
  irqchip: renesas-irqc: Fix irqc_probe error handling
  Linux 3.10.26
  sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c
  ext4: fix bigalloc regression
  arm64: Use Normal NonCacheable memory for writecombine
  arm64: Do not flush the D-cache for anonymous pages
  arm64: Avoid cache flushing in flush_dcache_page()
  ARM: KVM: arch_timers: zero CNTVOFF upon return to host
  ARM: hyp: initialize CNTVOFF to zero
  clocksource: arch_timer: use virtual counters
  arm64: Remove unused cpu_name ascii in arch/arm64/mm/proc.S
  arm64: dts: Reserve the memory used for secondary CPU release address
  arm64: check for number of arguments in syscall_get/set_arguments()
  arm64: fix possible invalid FPSIMD initialization state
  ...

Change-Id: Ia0e5d71b536ab49ec3a1179d59238c05bdd03106
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-03-24 14:28:34 -07:00
Linus Torvalds e6960740e7 Fix a few incorrectly checked [io_]remap_pfn_range() calls
Nico Golde reports a few straggling uses of [io_]remap_pfn_range() that
really should use the vm_iomap_memory() helper.  This trivially converts
two of them to the helper, and comments about why the third one really
needs to continue to use remap_pfn_range(), and adds the missing size
check.

CRs-Fixed: 570735
Change-Id: I927a67ea80fea5ed706749ead9defb1e72633952
Reported-by: Nico Golde <nico@ngolde.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org.
Git-commit: 7314e613d5ff9f0934f7a0f74ed7973b903315d1
Git-repo: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git
[pratibha@codeaurora.org:resolve trivial merge conflicts]
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>
2014-01-28 11:10:06 +05:30
Uwe Kleine-König 2ce38be086 uio: provide vm access to UIO_MEM_PHYS maps
This makes it possible to let gdb access mappings of the process that is
being debugged.

uio_mmap_logical was moved and uio_vm_ops renamed to group related code
and differentiate to new stuff.

CRs-Fixed: 570735
Change-Id: I8a5ff343727cc58fedfeb73f3466cc9a7f153e84
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Git-commit: 7294151d0592e0ff48c61fca9fd7c93d613134da
Git-repo: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>
2014-01-28 11:09:39 +05:30
Linus Torvalds c79c7ad9d1 Fix a few incorrectly checked [io_]remap_pfn_range() calls
commit 7314e613d5ff9f0934f7a0f74ed7973b903315d1 upstream.

Nico Golde reports a few straggling uses of [io_]remap_pfn_range() that
really should use the vm_iomap_memory() helper.  This trivially converts
two of them to the helper, and comments about why the third one really
needs to continue to use remap_pfn_range(), and adds the missing size
check.

Reported-by: Nico Golde <nico@ngolde.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13 12:05:33 +09:00
Uwe Kleine-König 5fa25ee0bd uio: provide vm access to UIO_MEM_PHYS maps
commit 7294151d0592e0ff48c61fca9fd7c93d613134da upstream.

This makes it possible to let gdb access mappings of the process that is
being debugged.

uio_mmap_logical was moved and uio_vm_ops renamed to group related code
and differentiate to new stuff.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13 12:05:33 +09:00
Pratibhasagar V c040b2c2dc uio: msm_sharedmem: Add new device driver for sharedmemory access
Add new device driver to provide a standard interface for its
clients (like RemoteFS and RFSA) to be able to memory map their
respective allotted shared memory address in the client's address space.
The shared memory (a transport buffer) address is unique for each
individual client and is made available to the driver via device tree.

This driver uses the existing UIO framework to facilitate the clients
mmap requirements. Each individual client will be able to use a unique
UIO device for this purpose.

CRs-Fixed: 477427
Change-Id: If07b88086b5f1b87845962818094644575629fcf
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2013-11-06 09:41:54 -08:00
Geert Uytterhoeven 89fb9e7c34 uio: UIO_DMEM_GENIRQ should depend on HAS_DMA
If NO_DMA=y:

drivers/built-in.o: In function `uio_dmem_genirq_release':
drivers/uio/uio_dmem_genirq.c:95: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `uio_dmem_genirq_open':
drivers/uio/uio_dmem_genirq.c:61: undefined reference to `dma_alloc_coherent'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hans J. Koch <hjk@hansjkoch.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-21 10:13:23 -07:00
Damian Hobson-Garcia 5ed0505c71 drivers: uio: Fix UIO device registration failure
Until recently uio_get_minor() returned 0 for success and
a negative value on failure.  This became non-negative for suceess and
negative for failure.  Restore the original return value spec so that we can
successfully initialize UIO devices with a non-zero minor device
number.

Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-29 09:08:22 -07:00
Tejun Heo 6d77093129 uio: convert to idr_alloc()
Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:19 -08:00
Heiko Carstens c423c8ffa7 uio: remove !S390 dependency from Kconfig
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-14 15:55:18 +01:00
Linus Torvalds d027db132b ARM: arm-soc: SoC updates for 3.8
This contains the bulk of new SoC development for this merge window.
 
 Two new platforms have been added, the sunxi platforms (Allwinner A1x
 SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
 series of ARMv7 platforms from them, where the hope is that we can
 keep the platform code generic enough to have them all share one mach
 directory. The new Broadcom platform is contributed by Christian Daudt.
 
 Highbank has grown support for Calxeda's next generation of hardware,
 ECX-2000.
 
 clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also
 taken on maintainership of the platform.
 
 Beyond this there has been a bunch of work from a number of people on
 converting more platforms to IRQ domains, pinctrl conversion, cleanup
 and general feature enablement across most of the active platforms.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates from Olof Johansson:
 "This contains the bulk of new SoC development for this merge window.

  Two new platforms have been added, the sunxi platforms (Allwinner A1x
  SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
  series of ARMv7 platforms from them, where the hope is that we can
  keep the platform code generic enough to have them all share one mach
  directory.  The new Broadcom platform is contributed by Christian
  Daudt.

  Highbank has grown support for Calxeda's next generation of hardware,
  ECX-2000.

  clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
  also taken on maintainership of the platform.

  Beyond this there has been a bunch of work from a number of people on
  converting more platforms to IRQ domains, pinctrl conversion, cleanup
  and general feature enablement across most of the active platforms."

Fix up trivial conflicts as per Olof.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
  mfd: vexpress-sysreg: Remove LEDs code
  irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
  clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
  irq: versatile: delete dangling variable
  ARM: sunxi: add missing include for mdelay()
  ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports
  ARM: S3C24XX: Add clkdev entry for camif-upll clock
  ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
  ARM: sunxi: Add missing sun4i.dtsi file
  pinctrl: samsung: Do not initialise statics to 0
  ARM i.MX6: remove gate_mask from pllv3
  ARM i.MX6: Fix ethernet PLL clocks
  ARM i.MX6: rename PLLs according to datasheet
  ARM i.MX6: Add pwm support
  ARM i.MX51: Add pwm support
  ARM i.MX53: Add pwm support
  ARM: mx5: Replace clk_register_clkdev with clock DT lookup
  ...
2012-12-12 12:05:15 -08:00
Damian Hobson-Garcia d5185c4eb3 drivers: uio: Only allocate new private data when probing device tree node
The same condition should be used both when allocating and freeing the
driver private data.  When dev.of_node is non NULL, allocate a new
private data structure, otherwise use the values from the platform data.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:44:10 -08:00
Damian Hobson-Garcia 439926c81c drivers: uio_dmem_genirq: Allow partial success when opening device
The uio device should not fail on open just because one memory allocation
fails. The device might export several regions, the failure of some of
which may or may not be a problem for the user space driver.  Failing
regions will remain unmapped, and successful regions will be mapped and
exported to user space.  Also deals with the case where failing to map
a region after successfully allocating others would not unmap the
successfully allocated regions before dying.

Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:44:10 -08:00
Damian Hobson-Garcia 87c4d1a7dc drivers: uio_dmem_genirq: Don't use DMA_ERROR_CODE to indicate unmapped regions
DMA_ERROR_CODE is not defined on all architectures and is architecture
specific.  Instead, use the constant, ~0 to indicate unmapped regions.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:44:10 -08:00
Damian Hobson-Garcia 24fce61b0b drivers: uio_dmem_genirq: Don't mix address spaces for dynamic region vaddr
Assigning the virtual address returned from dma_alloc_coherent to the the
internal_addr element of uioinfo produces the following sparse errors since
internal_addr is a void __iomem * and dma_alloc_coherent returns void *.

+ drivers/uio/uio_dmem_genirq.c:65:39: sparse: incorrect type in assignment (different address spaces)
  drivers/uio/uio_dmem_genirq.c:65:39:    expected void [noderef] <asn:2>*internal_addr
  drivers/uio/uio_dmem_genirq.c:65:39:    got void *[assigned] addr
+ drivers/uio/uio_dmem_genirq.c:93:17: sparse: incorrect type in argument 3 (different address spaces)
  drivers/uio/uio_dmem_genirq.c:93:17:    expected void *vaddr
  drivers/uio/uio_dmem_genirq.c:93:17:    got void [noderef] <asn:2>*internal_addr

Store the void * in the driver's private data instead.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:44:10 -08:00
Bill Pemberton 9b96c3124b uio: remove use of __devexit
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:41:35 -08:00
Bill Pemberton d46f743822 uio: remove use of __devinitdata
CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:41:35 -08:00
Bill Pemberton b17b75bb52 uio: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:41:35 -08:00
Bill Pemberton 5a59509b47 uio: remove use of __devexit_p
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 13:41:34 -08:00
Manuel Traut ecd43c0d7e uio_pdrv: set memory mapping name
If uio_pdrv[_genirq] is used, the uio maps have currently no name set.
This patch sets the uio_mem name to the name of the memory resource.

Signed-off-by: Manuel Traut <manut@linutronix.de>
Reported-by: Stefan Staedtler <stefan.staedtler@siemens.com>
Tested-by: Stefan Staedtler <stefan.staedtler@siemens.com>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15 17:29:07 -08:00
Matt Porter 2eb2478d47 uio: uio_pruss: replace private SRAM API with genalloc
Remove the use of the private DaVinci SRAM API in favor
of genalloc. The pool to be used is provided by platform
data.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2012-10-27 16:28:32 +05:30
Damian Hobson-Garcia 0a0c3b5a24 Add new uio device for dynamic memory allocation
This device extends the uio_pdrv_genirq driver to provide limited
dynamic memory allocation for UIO devices.  This allows UIO devices
to use CMA and IOMMU allocated memory regions. This driver is based
on the uio_pdrv_genirq driver and provides the same generic interrupt
handling capabilities.  Like uio_prdv_genirq,
a fixed number of memory regions, defined in the platform device's
.resources field are exported to userpace. This driver adds the ability
to export additional regions whose number and size are known at boot time,
but whose memory is not allocated until the uio device file is opened for
the first time.  When the device file is closed, the allocated memory block
is freed.  Physical (DMA) addresses for the dynamic regions are provided to
the userspace via /sys/class/uio/uioX/maps/mapY/addr in the same way as
static addresses are when the uio device file is open, when no processes
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.

Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-24 15:39:08 -07:00
Konstantin Khlebnikov 314e51b985 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:19 +09:00
Benedikt Spranger 94ca629e40 uio_pdrv_genirq: get irq through platform resource if not set otherwise
Platform devices are configured through platform resources. The interrupt
in the driver uio_pdrv_genirq is instead configured through a side channel
i.e. the platform data structure. Make it possible to use the generic
configuration scheme via platform resource.

Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-15 08:44:58 -07:00
Linus Torvalds 7b67e75147 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
  x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
  PCI: Increase resource array mask bit size in pcim_iomap_regions()
  PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES
  PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
  PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
  x86/PCI: amd: factor out MMCONFIG discovery
  PCI: Enable ATS at the device state restore
  PCI: msi: fix imbalanced refcount of msi irq sysfs objects
  PCI: kconfig: English typo in pci/pcie/Kconfig
  PCI/PM/Runtime: make PCI traces quieter
  PCI: remove pci_create_bus()
  xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
  x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
  x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
  x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
  sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
  sparc/PCI: convert to pci_create_root_bus()
  sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
  powerpc/PCI: convert to pci_create_root_bus()
  powerpc/PCI: split PHB part out of pcibios_map_io_space()
  ...

Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
to the same patches being applied in other branches.
2012-01-11 18:50:26 -08:00
Jan Kiszka 2502dbdfc8 uio: Convert uio_generic_pci to new intx masking API
The new PCI API provides both generic probing for 2.3 masking support
and check&mask in the interrupt handler.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06 12:10:35 -08:00
Jan Kiszka fb51ccbf21 PCI: Rework config space blocking services
pci_block_user_cfg_access was designed for the use case that a single
context, the IPR driver, temporarily delays user space accesses to the
config space via sysfs. This assumption became invalid by the time
pci_dev_reset was added as locking instance. Today, if you run two loops
in parallel that reset the same device via sysfs, you end up with a
kernel BUG as pci_block_user_cfg_access detect the broken assumption.

This reworks the pci_block_user_cfg_access to a sleeping service
pci_cfg_access_lock and an atomic-compatible variant called
pci_cfg_access_trylock. The former not only blocks user space access as
before but also waits if access was already locked. The latter service
just returns false in this case, allowing the caller to resolve the
conflict instead of raising a BUG.

Adaptions of the ipr driver were originally written by Brian King.

Acked-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06 12:10:33 -08:00
Axel Lin 11e3123d9f uio: convert drivers/uio/* to use module_platform_driver()
This patch converts the drivers in drivers/uio/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Cc: Magnus Damm <damm@igel.co.jp>
Cc: Amit Chatterjee <amit.chatterjee@ti.com>
Cc: Pratheesh Gangadhar <pratheesh@ti.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26 20:12:48 -08:00
Paul Gortmaker 2949ead458 uio: Add module.h to implicit drivers/uio users
We are cleaning up the omnipresent module.h stuff, so people
who really use it need to call it out explicitly.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:32:10 -04:00
Kai Jiang 27a90700a4 uio: Support physical addresses >32 bits on 32-bit systems
To support >32-bit physical addresses for UIO_MEM_PHYS type we need to
extend the width of 'addr' in struct uio_mem.  Numerous platforms like
embedded PPC, ARM, and X86 have support for systems with larger physical
address than logical.

Since 'addr' may contain a physical, logical, or virtual address the
easiest solution is to just change the type to 'phys_addr_t' which
should always be greater than or equal to the sizeof(void *) such that
it can properly hold any of the address types.

For physical address we can support up to a 44-bit physical address on a
typical 32-bit system as we utilize remap_pfn_range() for the mapping of
the memory region and pfn's are represnted by shifting the address by
the page size (typically 4k).

Signed-off-by: Kai Jiang <Kai.Jiang@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-18 11:18:57 -07:00
Wanlong Gao 9245acd20d drivers:uio:fix section mismatch in uio_pdrv_genirq.c
Remove the __devinitconst to fix the section mismatch.

WARNING: drivers/uio/built-in.o(.data+0x2e8): Section mismatch in
reference from the variable uio_pdrv_genirq to the variable
.devinit.rodata:uio_of_genirq_match
The variable uio_pdrv_genirq references
the variable __devinitconst uio_of_genirq_match
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the
variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one,
*_console

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 17:52:01 -07:00
Wanlong Gao d80df1cea0 drivers:uio:change the goto label to consistent with others
Remove one *goto* label in uio.c.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 17:52:00 -07:00
Hans J. Koch 4e0b72fd74 uio: uio_pci_generic: Remove useless spin_lock
The spin_lock in uio_pci_generic.c is only used in the interrupt
handler, which cannot be executed twice at the same time.
That makes the lock rather pointless. This patch removes it.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Chris Wright <chrisw@redhat.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Anthony Foiani <anthony.foiani@gmail.com>
Reported-by: Anthony Foiani <anthony.foiani@gmail.com>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 17:52:00 -07:00
Linus Torvalds f0deb97ab1 Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  updated Documentation/ja_JP/SubmittingPatches
  debugfs: add documentation for debugfs_create_x64
  uio: uio_pdrv_genirq: Add OF support
  firmware: gsmi: remove sysfs entries when unload the module
  Documentation/zh_CN: Fix messy code file email-clients.txt
  driver core: add more help description for "path to uevent helper"
  driver-core: modify FIRMWARE_IN_KERNEL help message
  driver-core: Kconfig grammar corrections in firmware configuration
  DOCUMENTATION: Replace create_device() with device_create().
  DOCUMENTATION: Update overview.txt in Doc/driver-model.
  pti: pti_tty_install documentation mispelling.
2011-07-25 23:06:24 -07:00
Hans J. Koch 27760f8686 uio: uio_pdrv_genirq: Add OF support
Adding OF binding to genirq.
Version string is setup to the "devicetree".

Compatible string is not setup for now but you can add your
custom compatible string to uio_of_genirq_match structure.

For example with "vendor,device" compatible string:
static const struct of_device_id __devinitconst uio_of_genirq_match[] = {
	{ .compatible = "vendor,device", },
	{ /* empty for now */ },
};

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
CC: Hans J. Koch <hjk@hansjkoch.de>
CC: Arnd Bergmann <arnd@arndb.de>
CC: John Williams <john.williams@petalogix.com>
CC: Grant Likely <grant.likely@secretlab.ca>
CC: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08 15:01:17 -07:00
Joe Perches 28f65c11f2 treewide: Convert uses of struct resource to resource_size(ptr)
Several fixes as well where the +1 was missing.

Done via coccinelle scripts like:

@@
struct resource *ptr;
@@

- ptr->end - ptr->start + 1
+ resource_size(ptr)

and some grep and typing.

Mostly uncompiled, no cross-compilers.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-10 14:55:36 +02:00
Jie Zhou 47296b1962 uio: clean uioinfo when uninstall uio driver
The uioinfo should be cleaned up when uninstall, otherwise re-install
failure of uio_pdrv_genirq.ko will happen.

Signed-off-by: Jie Zhou <b30303@freescale.com>
Signed-off-by: Aisheng Dong <b29396@freescale.com>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-19 16:59:57 -07:00
Hillf Danton c6edc42fe1 uio: fix allocating minor id for uio device
The number of uio devices that could be used should be less than
UIO_MAX_DEVICES by design, and this work guards any cases in which id
more than UIO_MAX_DEVICES is utilized.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-19 16:56:03 -07:00
Hillf Danton f0c554fddd uio: fix finding mm index for vma
When finding mm index for vma it looks more flexible that the mm could
be sparse, and both the size of mm and the pgoff of vma could give
correct selection.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-19 16:56:02 -07:00
Daniel Trautmann d8408aef91 uio_netx: Add support for netPLC cards
This patch adds support for Hilscher / IBHsoftec netPLC cards to uio_netx userspace IO driver.

Changes from v1 -> v2:
Fixed whitespace errors reported by scripts/checkpatch.pl which were caused by email client.

Signed-off-by: Daniel Trautmann <dtrautmann@ibhsoftec-sps.de>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-19 16:56:02 -07:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Pratheesh Gangadhar f1a304e794 UIO: add PRUSS UIO driver support
This patch implements PRUSS (Programmable Real-time Unit Sub System)
UIO driver which exports SOC resources associated with PRUSS like
I/O, memories and IRQs to user space. PRUSS is dual 32-bit RISC
processors which is efficient in performing embedded tasks that
require manipulation of packed memory mapped data structures and
handling system events that have tight real time constraints. This
driver is currently supported on Texas Instruments DA850, AM18xx and
OMAP-L138 devices.
For example, PRUSS runs firmware for real-time critical industrial
communication data link layer and communicates with application stack
running in user space via shared memory and IRQs.

Signed-off-by: Pratheesh Gangadhar <pratheesh@ti.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-03-07 13:10:27 -08:00