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495,252 commits

Author SHA1 Message Date
Christophe Ricard
aceb32d05a NFC: st21nfcb: Remove useless pr_info
- pr_info in st21nfcb_nci_i2c_disable is not necessary

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-12-02 22:46:44 +01:00
Dmitry Monakhov
d952d69e26 ext4: ext4_inline_data_fiemap should respect callers argument
Currently ext4_inline_data_fiemap ignores requested arguments (start
and len) which may lead endless loop if start != 0.  Also fix incorrect
extent length determination.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-12-02 16:11:20 -05:00
Dmitry Monakhov
5cc28a9eaa ext4: prevent fsreentrance deadlock for inline_data
ext4_da_convert_inline_data_to_extent() invokes
grab_cache_page_write_begin().  grab_cache_page_write_begin performs
memory allocation, so fs-reentrance should be prohibited because we
are inside journal transaction.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-12-02 16:09:50 -05:00
Michael Ellerman
4c12df63f7 selftests/kcmp: Always try to build the test
Don't prevent the test building on non-x86. Just try and build it and
let the chips fall where they may.

Add support for CROSS_COMPILE while we're at it. Also we don't need a
custom rule for building kcmp_test.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2014-12-02 13:53:24 -07:00
Michael Ellerman
41ec8cdcfa selftests/kcmp: Don't include kernel headers
The kcmp test mucks with the include path to bring in the kernel
headers, and x86 headers too for reasons that are not clear.

Now that kcmp.h is exported none of that should be necessary.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2014-12-02 13:53:15 -07:00
Michael Ellerman
3f4994cfc1 kcmp: Move kcmp.h into uapi
kcmp.h appears to be part of the API, it's documented in kcmp(2), and
the selftests/kcmp code uses it. So move it to uapi so it's actually
exported.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2014-12-02 13:52:53 -07:00
Petr Mladek
f5475cc43c drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
I was unable too boot 3.18.0-rc6 because of the following kernel
panic in drm_calc_vbltimestamp_from_scanoutpos():

    [drm] Initialized drm 1.1.0 20060810
    [drm] radeon kernel modesetting enabled.
    [drm] initializing kernel modesetting (RV100 0x1002:0x515E 0x15D9:0x8080).
    [drm] register mmio base: 0xC8400000
    [drm] register mmio size: 65536
    radeon 0000:0b:01.0: VRAM: 128M 0x00000000D0000000 - 0x00000000D7FFFFFF (16M used)
    radeon 0000:0b:01.0: GTT: 512M 0x00000000B0000000 - 0x00000000CFFFFFFF
    [drm] Detected VRAM RAM=128M, BAR=128M
    [drm] RAM width 16bits DDR
    [TTM] Zone  kernel: Available graphics memory: 3829346 kiB
    [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
    [TTM] Initializing pool allocator
    [TTM] Initializing DMA pool allocator
    [drm] radeon: 16M of VRAM memory ready
    [drm] radeon: 512M of GTT memory ready.
    [drm] GART: num cpu pages 131072, num gpu pages 131072
    [drm] PCI GART of 512M enabled (table at 0x0000000037880000).
    radeon 0000:0b:01.0: WB disabled
    radeon 0000:0b:01.0: fence driver on ring 0 use gpu addr 0x00000000b0000000 and cpu addr 0xffff8800bbbfa000
    [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    [drm] Driver supports precise vblank timestamp query.
    [drm] radeon: irq initialized.
    [drm] Loading R100 Microcode
    radeon 0000:0b:01.0: Direct firmware load for radeon/R100_cp.bin failed with error -2
    radeon_cp: Failed to load firmware "radeon/R100_cp.bin"
    [drm:r100_cp_init] *ERROR* Failed to load firmware!
    radeon 0000:0b:01.0: failed initializing CP (-2).
    radeon 0000:0b:01.0: Disabling GPU acceleration
    [drm] radeon: cp finalized
    BUG: unable to handle kernel NULL pointer dereference at 000000000000025c
    IP: [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
    PGD 0
    Oops: 0000 [#1] SMP
    Modules linked in:
    CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.18.0-rc6-4-default #2649
    Hardware name: Supermicro X7DB8/X7DB8, BIOS 6.00 07/26/2006
    task: ffff880234da2010 ti: ffff880234da4000 task.ti: ffff880234da4000
    RIP: 0010:[<ffffffff8150423b>]  [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
    RSP: 0000:ffff880234da7918  EFLAGS: 00010086
    RAX: ffffffff81557890 RBX: 0000000000000000 RCX: ffff880234da7a48
    RDX: ffff880234da79f4 RSI: 0000000000000000 RDI: ffff880232e15000
    RBP: ffff880234da79b8 R08: 0000000000000000 R09: 0000000000000000
    R10: 000000000000000a R11: 0000000000000001 R12: ffff880232dda1c0
    R13: ffff880232e1518c R14: 0000000000000292 R15: ffff880232e15000
    FS:  0000000000000000(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: 000000000000025c CR3: 0000000002014000 CR4: 00000000000007e0
    Stack:
     ffff880234da79d8 0000000000000286 ffff880232dcbc00 0000000000002480
     ffff880234da7958 0000000000000296 ffff880234da7998 ffffffff8151b51d
     ffff880234da7a48 0000000032dcbeb0 ffff880232dcbc00 ffff880232dcbc58
    Call Trace:
     [<ffffffff8151b51d>] ? drm_vma_offset_remove+0x1d/0x110
     [<ffffffff8152dc98>] radeon_get_vblank_timestamp_kms+0x38/0x60
     [<ffffffff8152076a>] ? ttm_bo_release_list+0xba/0x180
     [<ffffffff81503751>] drm_get_last_vbltimestamp+0x41/0x70
     [<ffffffff81503933>] vblank_disable_and_save+0x73/0x1d0
     [<ffffffff81106b2f>] ? try_to_del_timer_sync+0x4f/0x70
     [<ffffffff81505245>] drm_vblank_cleanup+0x65/0xa0
     [<ffffffff815604fa>] radeon_irq_kms_fini+0x1a/0x70
     [<ffffffff8156c07e>] r100_init+0x26e/0x410
     [<ffffffff8152ae3e>] radeon_device_init+0x7ae/0xb50
     [<ffffffff8152d57f>] radeon_driver_load_kms+0x8f/0x210
     [<ffffffff81506965>] drm_dev_register+0xb5/0x110
     [<ffffffff8150998f>] drm_get_pci_dev+0x8f/0x200
     [<ffffffff815291cd>] radeon_pci_probe+0xad/0xe0
     [<ffffffff8141a365>] local_pci_probe+0x45/0xa0
     [<ffffffff8141b741>] pci_device_probe+0xd1/0x130
     [<ffffffff81633dad>] driver_probe_device+0x12d/0x3e0
     [<ffffffff8163413b>] __driver_attach+0x9b/0xa0
     [<ffffffff816340a0>] ? __device_attach+0x40/0x40
     [<ffffffff81631cd3>] bus_for_each_dev+0x63/0xa0
     [<ffffffff8163378e>] driver_attach+0x1e/0x20
     [<ffffffff81633390>] bus_add_driver+0x180/0x240
     [<ffffffff81634914>] driver_register+0x64/0xf0
     [<ffffffff81419cac>] __pci_register_driver+0x4c/0x50
     [<ffffffff81509bf5>] drm_pci_init+0xf5/0x120
     [<ffffffff821dc871>] ? ttm_init+0x6a/0x6a
     [<ffffffff821dc908>] radeon_init+0x97/0xb5
     [<ffffffff810002fc>] do_one_initcall+0xbc/0x1f0
     [<ffffffff810e3278>] ? __wake_up+0x48/0x60
     [<ffffffff8218e256>] kernel_init_freeable+0x18a/0x215
     [<ffffffff8218d983>] ? initcall_blacklist+0xc0/0xc0
     [<ffffffff818a78f0>] ? rest_init+0x80/0x80
     [<ffffffff818a78fe>] kernel_init+0xe/0xf0
     [<ffffffff818c0c3c>] ret_from_fork+0x7c/0xb0
     [<ffffffff818a78f0>] ? rest_init+0x80/0x80
    Code: 45 ac 0f 88 a8 01 00 00 3b b7 d0 01 00 00 49 89 ff 0f 83 99 01 00 00 48 8b 47 20 48 8b 80 88 00 00 00 48 85 c0 0f 84 cd 01 00 00 <41> 8b b1 5c 02 00 00 41 8b 89 58 02 00 00 89 75 98 41 8b b1 60
    RIP  [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
     RSP <ffff880234da7918>
    CR2: 000000000000025c
    ---[ end trace ad2c0aadf48e2032 ]---
    Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009

It has helped me to add a NULL pointer check that was suggested at
http://lists.freedesktop.org/archives/dri-devel/2014-October/070663.html

I am not familiar with the code. But the change looks sane
and we need something fast at this stage of 3.18 development.

Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Petr Mladek <pmladek@suse.cz>
Tested-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-12-02 15:45:33 -05:00
Michel Dänzer
a08b588e41 drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84627
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-12-02 15:45:32 -05:00
Christian König
86b276385c drm/radeon: sync all BOs involved in a CS v2
Not just the userspace relocs, otherwise we won't wait
for a swapped out page tables to be swapped in again.

v2: rebased on Alex current drm-fixes-3.18

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-12-02 15:45:32 -05:00
John W. Linville
ea37511701 I deprecate here -8.ucode since -9 has been published long ago.
Along with that I have a new activity, we have now better
 infrastructure for firmware debugging. This will allow to
 have configurable probes insides the firmware.
 Luca continues his work on NetDetect, this feature is now
 complete. All the rest is minor fixes here and there.
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Merge tag 'iwlwifi-next-for-john-2014-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

"Grumbach, Emmanuel" <emmanuel.grumbach@intel.com> says:

"I deprecate here -8.ucode since -9 has been published long ago.
Along with that I have a new activity, we have now better
infrastructure for firmware debugging. This will allow to
have configurable probes insides the firmware.
Luca continues his work on NetDetect, this feature is now
complete. All the rest is minor fixes here and there."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-02 14:50:31 -05:00
Christoph Lameter
87b4bf6d0a [IA64] Update comment that references __get_cpu_var
__get_cpu_var was removed. Update the comments.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2014-12-02 11:22:07 -08:00
Markus Elfring
5c34fdf48b ALSA: trident: Deletion of a check before snd_util_memhdr_free()
The snd_util_memhdr_free() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-02 20:10:42 +01:00
Changman Lee
7dda2af83b f2fs: more fast lookup for gc_inode list
If there are many inodes that have data blocks in victim segment,
it takes long time to find a inode in gc_inode list.
Let's use radix_tree to reduce lookup time.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-02 11:02:50 -08:00
Tony Luck
fec53af531 sb_edac: Fix typo computing number of banks
Code will always think there are 16 banks because of a typo

Reported-by: Misha
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 16:46:33 -02:00
Tony Luck
1f39581a9a sb_edac: Add support for Broadwell-DE processor
Broadwell-DE is the microserver version of next generation Xeon
processors.  A whole bunch of new PCIe device ids, but otherwise
pretty much the same as Haswell.

Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 16:46:08 -02:00
Dmitry Torokhov
aad0b62412 sata_fsl: fix error handling of irq_of_parse_and_map
irq_of_parse_and_map() returns 0 on error (the result is unsigned int),
so testing for negative result never works.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2014-12-02 12:52:17 -05:00
Markus Elfring
057a4a55e7 ALSA: echoaudio: Deletion of a check before release_and_free_resource()
The release_and_free_resource() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-02 18:40:22 +01:00
Markus Elfring
87164cc572 ALSA: asihpi: Deletion of an unnecessary check before the function call "vfree"
The vfree() function performs also input parameter validation. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-02 18:39:30 +01:00
Devin Ryles
249cd0a187 AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
This patch adds DeviceIDs for Sunrise Point-LP.

Signed-off-by: Devin Ryles <devin.ryles@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2014-12-02 12:38:50 -05:00
Dan Carpenter
249b15ba63 scsi: set fmt to NULL scsi_extd_sense_format() by default
One of the two callers passes an unintialized pointer as "fmt" and
expects it to be set to NULL if there is no format string.  Let's make
this function work as expected.

Fixes: d811b848eb ('scsi: use sdev as argument for sense code printing')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-12-02 18:26:52 +01:00
Romain Perier
288ce4a8b6 ARM: dts: rockchip: Add input voltage supply regulators in pmic for Marsboard
vsys is the core always-on supply of the Marsboard.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-12-02 17:58:39 +01:00
Richard Leitner
04a3302b5f Documentation/email-clients.txt: add info about Claws Mail
Claws Mail GUI client works.
The client is available at http://www.claws-mail.org

Signed-off-by: Richard Leitner <dev@g0hl1n.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2014-12-02 11:55:29 -05:00
Eric W. Biederman
4fed655c41 mnt: Clear mnt_expire during pivot_root
When inspecting the pivot_root and the current mount expiry logic I
realized that pivot_root fails to clear like mount move does.

Add the missing line in case someone does the interesting feat of
moving an expirable submount.  This gives a strong guarantee that root
of the filesystem tree will never expire.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:51 -06:00
Eric W. Biederman
381cacb12c mnt: Carefully set CL_UNPRIVILEGED in clone_mnt
old->mnt_expiry should be ignored unless CL_EXPIRE is set.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:50 -06:00
Eric W. Biederman
8486a7882b mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.
Clear MNT_LOCKED in the callers of copy_tree except copy_mnt_ns, and
collect_mounts.  In copy_mnt_ns it is necessary to create an exact
copy of a mount tree, so not clearing MNT_LOCKED is important.
Similarly collect_mounts is used to take a snapshot of the mount tree
for audit logging purposes and auditing using a faithful copy of the
tree is important.

This becomes particularly significant when we start setting MNT_LOCKED
on rootfs to prevent it from being unmounted.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:50 -06:00
Eric W. Biederman
da362b09e4 umount: Do not allow unmounting rootfs.
Andrew Vagin <avagin@parallels.com> writes:

> #define _GNU_SOURCE
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <sched.h>
> #include <unistd.h>
> #include <sys/mount.h>
>
> int main(int argc, char **argv)
> {
> 	int fd;
>
> 	fd = open("/proc/self/ns/mnt", O_RDONLY);
> 	if (fd < 0)
> 	   return 1;
> 	   while (1) {
> 	   	 if (umount2("/", MNT_DETACH) ||
> 		        setns(fd, CLONE_NEWNS))
> 					break;
> 					}
>
> 					return 0;
> }
>
> root@ubuntu:/home/avagin# gcc -Wall nsenter.c -o nsenter
> root@ubuntu:/home/avagin# strace ./nsenter
> execve("./nsenter", ["./nsenter"], [/* 22 vars */]) = 0
> ...
> open("/proc/self/ns/mnt", O_RDONLY)     = 3
> umount("/", MNT_DETACH)                 = 0
> setns(3, 131072)                        = 0
> umount("/", MNT_DETACH
>
causes:

> [  260.548301] ------------[ cut here ]------------
> [  260.550941] kernel BUG at /build/buildd/linux-3.13.0/fs/pnode.c:372!
> [  260.552068] invalid opcode: 0000 [#1] SMP
> [  260.552068] Modules linked in: xt_CHECKSUM iptable_mangle xt_tcpudp xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bufio dm_bio_prison iptable_filter ip_tables x_tables crct10dif_pclmul crc32_pclmul ghash_clmulni_intel binfmt_misc nfsd auth_rpcgss nfs_acl aesni_intel nfs lockd aes_x86_64 sunrpc fscache lrw gf128mul glue_helper ablk_helper cryptd serio_raw ppdev parport_pc lp parport btrfs xor raid6_pq libcrc32c psmouse floppy
> [  260.552068] CPU: 0 PID: 1723 Comm: nsenter Not tainted 3.13.0-30-generic #55-Ubuntu
> [  260.552068] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
> [  260.552068] task: ffff8800376097f0 ti: ffff880074824000 task.ti: ffff880074824000
> [  260.552068] RIP: 0010:[<ffffffff811e9483>]  [<ffffffff811e9483>] propagate_umount+0x123/0x130
> [  260.552068] RSP: 0018:ffff880074825e98  EFLAGS: 00010246
> [  260.552068] RAX: ffff88007c741140 RBX: 0000000000000002 RCX: ffff88007c741190
> [  260.552068] RDX: ffff88007c741190 RSI: ffff880074825ec0 RDI: ffff880074825ec0
> [  260.552068] RBP: ffff880074825eb0 R08: 00000000000172e0 R09: ffff88007fc172e0
> [  260.552068] R10: ffffffff811cc642 R11: ffffea0001d59000 R12: ffff88007c741140
> [  260.552068] R13: ffff88007c741140 R14: ffff88007c741140 R15: 0000000000000000
> [  260.552068] FS:  00007fd5c7e41740(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
> [  260.552068] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  260.552068] CR2: 00007fd5c7968050 CR3: 0000000070124000 CR4: 00000000000406f0
> [  260.552068] Stack:
> [  260.552068]  0000000000000002 0000000000000002 ffff88007c631000 ffff880074825ed8
> [  260.552068]  ffffffff811dcfac ffff88007c741140 0000000000000002 ffff88007c741160
> [  260.552068]  ffff880074825f38 ffffffff811dd12b ffffffff811cc642 0000000075640000
> [  260.552068] Call Trace:
> [  260.552068]  [<ffffffff811dcfac>] umount_tree+0x20c/0x260
> [  260.552068]  [<ffffffff811dd12b>] do_umount+0x12b/0x300
> [  260.552068]  [<ffffffff811cc642>] ? final_putname+0x22/0x50
> [  260.552068]  [<ffffffff811cc849>] ? putname+0x29/0x40
> [  260.552068]  [<ffffffff811dd88c>] SyS_umount+0xdc/0x100
> [  260.552068]  [<ffffffff8172aeff>] tracesys+0xe1/0xe6
> [  260.552068] Code: 89 50 08 48 8b 50 08 48 89 02 49 89 45 08 e9 72 ff ff ff 0f 1f 44 00 00 4c 89 e6 4c 89 e7 e8 f5 f6 ff ff 48 89 c3 e9 39 ff ff ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 66 66 66 66 90 55 b8 01
> [  260.552068] RIP  [<ffffffff811e9483>] propagate_umount+0x123/0x130
> [  260.552068]  RSP <ffff880074825e98>
> [  260.611451] ---[ end trace 11c33d85f1d4c652 ]--

Which in practice is totally uninteresting.  Only the global root user can
do it, and it is just a stupid thing to do.

However that is no excuse to allow a silly way to oops the kernel.

We can avoid this silly problem by setting MNT_LOCKED on the rootfs
mount point and thus avoid needing any special cases in the unmount
code.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:49 -06:00
Eric W. Biederman
b2f5d4dc38 umount: Disallow unprivileged mount force
Forced unmount affects not just the mount namespace but the underlying
superblock as well.  Restrict forced unmount to the global root user
for now.  Otherwise it becomes possible a user in a less privileged
mount namespace to force the shutdown of a superblock of a filesystem
in a more privileged mount namespace, allowing a DOS attack on root.

Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:48 -06:00
Eric W. Biederman
4a44a19b47 mnt: Update unprivileged remount test
- MNT_NODEV should be irrelevant except when reading back mount flags,
  no longer specify MNT_NODEV on remount.

- Test MNT_NODEV on devpts where it is meaningful even for unprivileged mounts.

- Add a test to verify that remount of a prexisting mount with the same flags
  is allowed and does not change those flags.

- Cleanup up the definitions of MS_REC, MS_RELATIME, MS_STRICTATIME that are used
  when the code is built in an environment without them.

- Correct the test error messages when tests fail.  There were not 5 tests
  that tested MS_RELATIME.

Cc: stable@vger.kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2014-12-02 10:46:48 -06:00
Eric W. Biederman
3e1866410f mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount
Now that remount is properly enforcing the rule that you can't remove
nodev at least sandstorm.io is breaking when performing a remount.

It turns out that there is an easy intuitive solution implicitly
add nodev on remount when nodev was implicitly added on mount.

Tested-by: Cedric Bosdonnat <cbosdonnat@suse.com>
Tested-by: Richard Weinberger <richard@nod.at>
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2014-12-02 10:46:39 -06:00
Arnd Bergmann
8117bf17fe ARM: at91: at91rm9200 ST initialization is now DT only
As at91rm9200 is now DT only, there is no need to keep old entry point in this
at91rm9200 System Timer (ST) driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[nicolas.ferre@atmel.com: split patch]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-12-02 16:59:07 +01:00
Arnd Bergmann
85c4b31e6e ARM: at91: remove old AT91-specific drivers
GPIO and LED drivers were replaced by generic ones for DT boards. These drivers
were remaining: delete them now. Modifications are also done on the
corresponding header files.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[nicolas.ferre@atmel.com: split patch]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-12-02 16:59:06 +01:00
Arnd Bergmann
865a381223 ARM: at91: cleanup initilisation code by removing dead code
The AT91-specific SoC strucutre "struct at91_init_soc" was filled with specific
!DT initilisation functions. Now that we got rid of the !DT board file
description, remove unneeded functions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[nicolas.ferre@atmel.com: split patch]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-12-02 16:59:06 +01:00
Arnd Bergmann
e093d7cf37 ARM: at91/Kconfig: select board files automatically
An explicit selection option is not needed for board files so now we select the
board from SoC option.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[nicolas.ferre@atmel.com: remove option's comments; split patch]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-12-02 16:58:58 +01:00
Milan Broz
1a71d6ffe1 dm crypt: use memzero_explicit for on-stack buffer
Use memzero_explicit to cleanup sensitive data allocated on stack
to prevent the compiler from optimizing and removing memset() calls.

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-12-02 10:25:07 -05:00
Joe Thornber
02717d9855 dm space map metadata: fix sm_bootstrap_get_count()
Must set 'result' accordingly rather than return it.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-02 10:25:06 -05:00
Krzysztof Kozlowski
c31844ffdb clk: samsung: Fix double add of syscore ops after driver rebind
During driver unbind the syscore ops were not unregistered which lead to
double add on syscore list:

$ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/unbind
$ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/bind
[ 1463.044061] ------------[ cut here ]------------
[ 1463.047255] WARNING: CPU: 0 PID: 1 at lib/list_debug.c:36 __list_add+0x8c/0xc0()
[ 1463.054613] list_add double add: new=c06e52c0, prev=c06e52c0, next=c06d5f84.
[ 1463.061625] Modules linked in:
[ 1463.064623] CPU: 0 PID: 1 Comm: bash Tainted: G        W      3.18.0-rc5-next-20141121-00005-ga8fab06eab42-dirty #1022
[ 1463.075338] [<c0014e2c>] (unwind_backtrace) from [<c0011d80>] (show_stack+0x10/0x14)
[ 1463.083046] [<c0011d80>] (show_stack) from [<c048bb70>] (dump_stack+0x70/0xbc)
[ 1463.090236] [<c048bb70>] (dump_stack) from [<c00233d4>] (warn_slowpath_common+0x74/0xb0)
[ 1463.098295] [<c00233d4>] (warn_slowpath_common) from [<c00234a4>] (warn_slowpath_fmt+0x30/0x40)
[ 1463.106962] [<c00234a4>] (warn_slowpath_fmt) from [<c020fe80>] (__list_add+0x8c/0xc0)
[ 1463.114760] [<c020fe80>] (__list_add) from [<c0282094>] (register_syscore_ops+0x30/0x3c)
[ 1463.122819] [<c0282094>] (register_syscore_ops) from [<c0392f20>] (exynos_audss_clk_probe+0x36c/0x460)
[ 1463.132091] [<c0392f20>] (exynos_audss_clk_probe) from [<c0283084>] (platform_drv_probe+0x48/0xa4)
[ 1463.141013] [<c0283084>] (platform_drv_probe) from [<c0281a14>] (driver_probe_device+0x13c/0x37c)
[ 1463.149852] [<c0281a14>] (driver_probe_device) from [<c0280560>] (bind_store+0x90/0xe0)
[ 1463.157822] [<c0280560>] (bind_store) from [<c027fd10>] (drv_attr_store+0x20/0x2c)
[ 1463.165363] [<c027fd10>] (drv_attr_store) from [<c0143898>] (sysfs_kf_write+0x4c/0x50)
[ 1463.173252] [<c0143898>] (sysfs_kf_write) from [<c0142c80>] (kernfs_fop_write+0xbc/0x198)
[ 1463.181395] [<c0142c80>] (kernfs_fop_write) from [<c00e2be0>] (vfs_write+0xa0/0x1a8)
[ 1463.189104] [<c00e2be0>] (vfs_write) from [<c00e2f00>] (SyS_write+0x40/0x8c)
[ 1463.196122] [<c00e2f00>] (SyS_write) from [<c000f2a0>] (ret_fast_syscall+0x0/0x48)
[ 1463.203655] ---[ end trace 08f6710c9bc8d8f3 ]---
[ 1463.208244] exynos-audss-clk 3810000.audss-clock-controller: setup completed

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 1241ef94cc ("clk: samsung: register audio subsystem clocks using common clock framework")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:59 +01:00
Andrzej Hajda
df019a5c0f clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
sclk_hdmiphy clock is generated by HDMI-PHY and depends on hdmi gate clock.
The patch models this dependency using parent/child hirerarchy.

The patch fixes issue with system hangs during mixer device access, mixer uses
sclk_hdmiphy descendant clock.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:58 +01:00
Krzysztof Kozlowski
b5f56e14c1 clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
Fix following build errors when PM_SLEEP is disabled (e.g. by disabling
SUSPEND and HIBERNATION):

drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_init’:
drivers/clk/samsung/clk-exynos4415.c:982:2: error: ‘exynos4415_ctx’ undeclared (first use in this function)
drivers/clk/samsung/clk-exynos4415.c:982:2: note: each undeclared identifier is reported only once for each function it appears in
drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_dmc_init’:
drivers/clk/samsung/clk-exynos4415.c:1123:2: error: ‘exynos4415_dmc_ctx’ undeclared (first use in this function)
make[3]: *** [drivers/clk/samsung/clk-exynos4415.o] Error 1

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:58 +01:00
Pankaj Dubey
8b2f63606a clk: samsung: remove unnecessary inclusion of header files from clk.h
Let's remove unnecessary include of header files from clk.h and add
required one in clk.c

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
[s.nawrocki@samsung.com: dropped removal of '#include <linux/syscore_ops.h>']
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:21:37 +01:00
Darrick J. Wong
594416a720 block: fix regression where bio_integrity_process uses wrong bio_vec iterator
bio integrity handling is broken on a system with LVM layered atop a
DIF/DIX SCSI drive because device mapper clones the bio, modifies the
clone, and sends the clone to the lower layers for processing.
However, the clone bio has bi_vcnt == 0, which means that when the sd
driver calls bio_integrity_process to attach DIX data, the
for_each_segment_all() call (which uses bi_vcnt) returns immediately
and random garbage is sent to the disk on a disk write.  The disk of
course returns an error.

Therefore, teach bio_integrity_process() to use bio_for_each_segment()
to iterate the bio_vecs, since the per-bio iterator tracks which
bio_vecs are associated with that particular bio.  The integrity
handling code is effectively part of the "driver" (it's not the bio
owner), so it must use the correct iterator function.

v2: Fix a compiler warning about abandoned local variables.  This
patch supersedes "block: bio_integrity_process uses wrong bio_vec
iterator".  Patch applies against 3.18-rc6.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-12-02 08:15:21 -07:00
Julia Lawall
f43c239407 crypto: arm - replace memset by memzero_explicit
Memset on a local variable may be removed when it is called just before the
variable goes out of scope.  Using memzero_explicit defeats this
optimization.  A simplified version of the semantic patch that makes this
change is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
type T;
@@

{
... when any
T x[...];
... when any
    when exists
- memset
+ memzero_explicit
  (x,
-0,
  ...)
... when != x
    when strict
}
// </smpl>

This change was suggested by Daniel Borkmann <dborkman@redhat.com>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-02 22:55:51 +08:00
Julia Lawall
d83480b061 crypto: powerpc - replace memset by memzero_explicit
Memset on a local variable may be removed when it is called just before the
variable goes out of scope.  Using memzero_explicit defeats this
optimization.  A simplified version of the semantic patch that makes this
change is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
type T;
@@

{
... when any
T x[...];
... when any
    when exists
- memset
+ memzero_explicit
  (x,
-0,
  ...)
... when != x
    when strict
}
// </smpl>

This change was suggested by Daniel Borkmann <dborkman@redhat.com>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-02 22:55:50 +08:00
Julia Lawall
a6326ba025 crypto: sha - replace memset by memzero_explicit
Memset on a local variable may be removed when it is called just before the
variable goes out of scope.  Using memzero_explicit defeats this
optimization.  A simplified version of the semantic patch that makes this
change is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
type T;
@@

{
... when any
T x[...];
... when any
    when exists
- memset
+ memzero_explicit
  (x,
-0,
  ...)
... when != x
    when strict
}
// </smpl>

This change was suggested by Daniel Borkmann <dborkman@redhat.com>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-02 22:55:49 +08:00
Julia Lawall
8202cd7206 crypto: sparc - replace memset by memzero_explicit
Memset on a local variable may be removed when it is called just before the
variable goes out of scope.  Using memzero_explicit defeats this
optimization.  A simplified version of the semantic patch that makes this
change is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
type T;
@@

{
... when any
T x[...];
... when any
    when exists
- memset
+ memzero_explicit
  (x,
-0,
  ...)
... when != x
    when strict
}
// </smpl>

This change was suggested by Daniel Borkmann <dborkman@redhat.com>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-02 22:55:48 +08:00
Stephan Mueller
f26b7b8052 crypto: algif_skcipher - initialize upon init request
When using the algif_skcipher, the following call sequence causess a
re-initialization:

1. sendmsg with ALG_SET_OP and iov == NULL, iovlen == 0 (i.e
initializing the cipher, but not sending data)

2. sendmsg with msg->msg-controllen == 0 and iov != NULL (using the initalized
cipher handle by sending data)

In step 2, the cipher operation type (encryption or decryption) is reset
to always decryption, because the local variable of enc is put into
ctx->enc as ctx->user is still zero.

The same applies when all send data is processed and ctx->used falls to
zero followed by user space to send new data.

This patch changes the behavior to only reset the cipher operation type
(and the IV) if such configuration request is received.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-02 22:55:46 +08:00
Eran Harary
61df750cb0 iwlwifi: mvm: Ability to work with packed usniffer image
The new ucode package format holds also the usniffer images
(in addition to the operational images and the TLVs).
The driver can load the usniffer image if debug
configuration tells it to.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:56 +02:00
Liad Kaufman
99684ae356 iwlwifi: pcie: support more monitor types dumping
Until this patch, dumping the monitor data could be done only
for PCIe external (DRAM) mode in 7000 HW family. This patch
allows to pull the monitor data also on other families, and
also to pull the monitor data if an internal buffer is used.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:56 +02:00
Liad Kaufman
09e350f720 iwlwifi: pcie: config regs according to fw tlv
Sometimes there is a need to configure some registers for
setting some FW properties, such as the FW monitor mode
(internal/external). This patch supports setting this for
PCIe mode.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:55 +02:00
Liad Kaufman
6a95126763 iwlwifi: mvm: send dbg config hcmds to fw if set in tlv
Send all debug-configuration HCMDs that are set in the TLVs
to the FW. This may include HCMDs to configure the FW
monitor and FW log level, for example.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:51:55 +02:00
Liad Kaufman
490fefebb6 iwlwifi: define the .ucode file format for debug
Debug information can be appended to the firmware file. This
information will be used by the driver to enable / disable
debugging features in the firmware.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-02 16:50:51 +02:00