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982,081 commits

Author SHA1 Message Date
Michal Kubecek
516c512bde tun: fix misleading comment format
The comment above tun_flow_save_rps_rxhash() starts with "/**" which
makes it look like kerneldoc comment and results in warnings when
building with W=1. Fix the format to make it look like a normal comment.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 21:38:02 -08:00
Bjorn Andersson
27520210e8 arm64: dts: qcom: msm8996: Use generic QMP driver for UFS
With support for the MSM8996 UFS PHY added to the common QMP driver,
migrate the DTS to use the common QMP binding.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200125001234.435384-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-05 21:37:36 -08:00
Bjorn Andersson
950d3fb6fb arm64: dts: qcom: msm8996: Define parent clocks for gcc
The CLKREF clocks in GCC are parented by RPM_SMD_LN_BB_CLK, through the
CXO2 pad. Wire this up so that this is properly enabled when need by the
various PHYs.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200106080546.3192125-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-05 21:37:32 -08:00
Paolo Abeni
2398e3991b mptcp: always include dack if possible.
Currently passive MPTCP socket can skip including the DACK
option - if the peer sends data before accept() completes.

The above happens because the msk 'can_ack' flag is set
only after the accept() call.

Such missing DACK option may cause - as per RFC spec -
unwanted fallback to TCP.

This change addresses the issue using the key material
available in the current subflow, if any, to create a suitable
dack option when msk ack seq is not yet available.

v1 -> v2:
 - adavance the generated ack after the initial MPC packet

Fixes: d22f4988ff ("mptcp: process MP_CAPABLE data option")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 21:34:42 -08:00
Dan Carpenter
a3aefbfe45 net: nfc: fix bounds checking bugs on "pipe"
This is similar to commit 674d9de02a ("NFC: Fix possible memory
corruption when handling SHDLC I-Frame commands") and commit d7ee81ad09
("NFC: nci: Add some bounds checking in nci_hci_cmd_received()") which
added range checks on "pipe".

The "pipe" variable comes skb->data[0] in nfc_hci_msg_rx_work().
It's in the 0-255 range.  We're using it as the array index into the
hdev->pipes[] array which has NFC_HCI_MAX_PIPES (128) members.

Fixes: 118278f20a ("NFC: hci: Add pipes table to reference them with a tuple {gate, host}")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 21:32:42 -08:00
Qiujun Huang
dce8e23710 ext4: fix a data race at inode->i_disksize
KCSAN find inode->i_disksize could be accessed concurrently.

BUG: KCSAN: data-race in ext4_mark_iloc_dirty / ext4_write_end

write (marked) to 0xffff8b8932f40090 of 8 bytes by task 66792 on cpu 0:
 ext4_write_end+0x53f/0x5b0
 ext4_da_write_end+0x237/0x510
 generic_perform_write+0x1c4/0x2a0
 ext4_buffered_write_iter+0x13a/0x210
 ext4_file_write_iter+0xe2/0x9b0
 new_sync_write+0x29c/0x3a0
 __vfs_write+0x92/0xa0
 vfs_write+0xfc/0x2a0
 ksys_write+0xe8/0x140
 __x64_sys_write+0x4c/0x60
 do_syscall_64+0x8a/0x2a0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff8b8932f40090 of 8 bytes by task 14414 on cpu 1:
 ext4_mark_iloc_dirty+0x716/0x1190
 ext4_mark_inode_dirty+0xc9/0x360
 ext4_convert_unwritten_extents+0x1bc/0x2a0
 ext4_convert_unwritten_io_end_vec+0xc5/0x150
 ext4_put_io_end+0x82/0x130
 ext4_writepages+0xae7/0x16f0
 do_writepages+0x64/0x120
 __writeback_single_inode+0x7d/0x650
 writeback_sb_inodes+0x3a4/0x860
 __writeback_inodes_wb+0xc4/0x150
 wb_writeback+0x43f/0x510
 wb_workfn+0x3b2/0x8a0
 process_one_work+0x39b/0x7e0
 worker_thread+0x88/0x650
 kthread+0x1d4/0x1f0
 ret_from_fork+0x35/0x40

The plain read is outside of inode->i_data_sem critical section
which results in a data race. Fix it by adding READ_ONCE().

Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Link: https://lore.kernel.org/r/1582556566-3909-1-git-send-email-hqjagain@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 23:33:40 -05:00
Qian Cai
28936b62e7 ext4: fix a data race at inode->i_blocks
inode->i_blocks could be accessed concurrently as noticed by KCSAN,

 BUG: KCSAN: data-race in ext4_do_update_inode [ext4] / inode_add_bytes

 write to 0xffff9a00d4b982d0 of 8 bytes by task 22100 on cpu 118:
  inode_add_bytes+0x65/0xf0
  __inode_add_bytes at fs/stat.c:689
  (inlined by) inode_add_bytes at fs/stat.c:702
  ext4_mb_new_blocks+0x418/0xca0 [ext4]
  ext4_ext_map_blocks+0x1a6b/0x27b0 [ext4]
  ext4_map_blocks+0x1a9/0x950 [ext4]
  _ext4_get_block+0xfc/0x270 [ext4]
  ext4_get_block_unwritten+0x33/0x50 [ext4]
  __block_write_begin_int+0x22e/0xae0
  __block_write_begin+0x39/0x50
  ext4_write_begin+0x388/0xb50 [ext4]
  ext4_da_write_begin+0x35f/0x8f0 [ext4]
  generic_perform_write+0x15d/0x290
  ext4_buffered_write_iter+0x11f/0x210 [ext4]
  ext4_file_write_iter+0xce/0x9e0 [ext4]
  new_sync_write+0x29c/0x3b0
  __vfs_write+0x92/0xa0
  vfs_write+0x103/0x260
  ksys_write+0x9d/0x130
  __x64_sys_write+0x4c/0x60
  do_syscall_64+0x91/0xb05
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

 read to 0xffff9a00d4b982d0 of 8 bytes by task 8 on cpu 65:
  ext4_do_update_inode+0x4a0/0xf60 [ext4]
  ext4_inode_blocks_set at fs/ext4/inode.c:4815
  ext4_mark_iloc_dirty+0xaf/0x160 [ext4]
  ext4_mark_inode_dirty+0x129/0x3e0 [ext4]
  ext4_convert_unwritten_extents+0x253/0x2d0 [ext4]
  ext4_convert_unwritten_io_end_vec+0xc5/0x150 [ext4]
  ext4_end_io_rsv_work+0x22c/0x350 [ext4]
  process_one_work+0x54f/0xb90
  worker_thread+0x80/0x5f0
  kthread+0x1cd/0x1f0
  ret_from_fork+0x27/0x50

 4 locks held by kworker/u256:0/8:
  #0: ffff9a025abc4328 ((wq_completion)ext4-rsv-conversion){+.+.}, at: process_one_work+0x443/0xb90
  #1: ffffab5a862dbe20 ((work_completion)(&ei->i_rsv_conversion_work)){+.+.}, at: process_one_work+0x443/0xb90
  #2: ffff9a025a9d0f58 (jbd2_handle){++++}, at: start_this_handle+0x1c1/0x9d0 [jbd2]
  #3: ffff9a00d4b985d8 (&(&ei->i_raw_lock)->rlock){+.+.}, at: ext4_do_update_inode+0xaa/0xf60 [ext4]
 irq event stamp: 3009267
 hardirqs last  enabled at (3009267): [<ffffffff980da9b7>] __find_get_block+0x107/0x790
 hardirqs last disabled at (3009266): [<ffffffff980da8f9>] __find_get_block+0x49/0x790
 softirqs last  enabled at (3009230): [<ffffffff98a0034c>] __do_softirq+0x34c/0x57c
 softirqs last disabled at (3009223): [<ffffffff97cc67a2>] irq_exit+0xa2/0xc0

 Reported by Kernel Concurrency Sanitizer on:
 CPU: 65 PID: 8 Comm: kworker/u256:0 Tainted: G L 5.6.0-rc2-next-20200221+ #7
 Hardware name: HPE ProLiant DL385 Gen10/ProLiant DL385 Gen10, BIOS A40 07/10/2019
 Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work [ext4]

The plain read is outside of inode->i_lock critical section which
results in a data race. Fix it by adding READ_ONCE() there.

Link: https://lore.kernel.org/r/20200222043258.2279-1-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
2020-03-05 23:32:26 -05:00
Arnd Bergmann
9803aac7b5 drm/komeda: mark PM functions as __maybe_unused
Without this, we get a couple of warnings when CONFIG_PM
is disabled:

drivers/gpu/drm/arm/display/komeda/komeda_drv.c:156:12: error: 'komeda_rt_pm_resume' defined but not used [-Werror=unused-function]
 static int komeda_rt_pm_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/arm/display/komeda/komeda_drv.c:149:12: error: 'komeda_rt_pm_suspend' defined but not used [-Werror=unused-function]
 static int komeda_rt_pm_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~

Fixes: efb4650885 ("drm/komeda: Add runtime_pm support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107215327.1579195-1-arnd@arndb.de
2020-03-06 11:25:58 +08:00
Chris Wilson
a61ac1e751 drm/i915/gvt: Wean gvt off using dev_priv
Teach gvt to use intel_gt directly as it currently assumes direct HW
access.

[Zhenyu: rebase, fix compiling]

Cc: Ding Zhuocheng <zhuocheng.ding@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200304032307.2983-3-zhenyuw@linux.intel.com
2020-03-06 10:08:10 +08:00
Valdis Kletnieks
9acd0d5380 exfat: update file system parameter handling
Al Viro recently reworked the way file system parameters are handled
Update super.c to work with it in linux-next 20200203.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
1a3c0509ce staging: exfat: make staging/exfat and fs/exfat mutually exclusive
Make staging/exfat and fs/exfat mutually exclusive to select the one
between two same filesystem.

Suggested-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
88ab55f16a MAINTAINERS: add exfat filesystem
Add myself and Sungjong Seo as exfat maintainer.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
b9d1e2e626 exfat: add Kconfig and Makefile
This adds the Kconfig and Makefile for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
370e812b3e exfat: add nls operations
This adds the implementation of nls operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
772b29cca5 exfat: add misc operations
This adds the implementation of misc operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
c35b6810c4 exfat: add exfat cache
This adds the implementation of exfat cache.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
1e49a94cf7 exfat: add bitmap operations
This adds the implementation of bitmap operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
31023864e6 exfat: add fat entry operations
This adds the implementation of fat entry operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
98d917047e exfat: add file operations
This adds the implementation of file operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
ca06197382 exfat: add directory operations
This adds the implementation of directory operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
5f2aa07507 exfat: add inode operations
This adds the implementation of inode operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:40 -05:00
Namjae Jeon
719c1e1829 exfat: add super block operations
This adds the implementation of superblock operations for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:39 -05:00
Namjae Jeon
1acf1a564b exfat: add in-memory and on-disk structures and headers
This adds in-memory and on-disk structures and headers.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-05 21:00:39 -05:00
Chris Wilson
8fde41076f drm/i915/gvt: Wean gvt off dev_priv->engine[]
Stop trying to escape out of the gvt layer to find the engine that we
initially setup for use with gvt. Record the engines during initialisation
and use them henceforth.

add/remove: 1/4 grow/shrink: 22/28 up/down: 341/-1410 (-1069)

[Zhenyu: rebase, fix nonpriv register check fault, fix gvt engine
thread run failure.]

Cc: Ding Zhuocheng <zhuocheng.ding@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200304032307.2983-2-zhenyuw@linux.intel.com
2020-03-06 09:56:15 +08:00
Chris Wilson
aa444fc7fb drm/i915/gvt: cleanup debugfs scan_nonprivbb
Remove extra chatty message for debugfs scan_nonprivbb which is used
to enable scan for non privileged batch on specific engine. Just write
target i915 engine mask instead.

Cc: Ding Zhuocheng <zhuocheng.ding@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200304032307.2983-1-zhenyuw@linux.intel.com
2020-03-06 09:54:01 +08:00
Tina Zhang
135dde8853 drm/i915/gvt: Fix dma-buf display blur issue on CFL
Commit c3b5a8430d ("drm/i915/gvt: Enable gfx virtualiztion for CFL")
added the support on CFL. The vgpu emulation hotplug support on CFL was
supposed to be included in that patch. Without the vgpu emulation
hotplug support, the dma-buf based display gives us a blur face.

So fix this issue by adding the vgpu emulation hotplug support on CFL.

Fixes: c3b5a8430d ("drm/i915/gvt: Enable gfx virtualiztion for CFL")
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200227010041.32248-1-tina.zhang@intel.com
2020-03-06 09:52:13 +08:00
Roman Mashak
9dd620afd1 tc-testing: updated tdc tests for basic filter with canid extended match rules
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:41:45 -08:00
Roman Mashak
52ef810839 tc-testing: list kernel options for basic filter with canid ematch.
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:41:45 -08:00
David S. Miller
5e0db7e4b1 Merge branch 'PCI-Implement-function-to-read-Device-Serial-Number'
Jacob Keller says:

====================
PCI: Implement function to read Device Serial Number

Several drivers read the Device Serial Number from the PCIe extended
configuration space. Each of these drivers implements a similar approach to
finding the position and then extracting the 8 bytes of data.

Implement a new helper function, pci_get_dsn, which can be used to extract
this data into an 8 byte array.

Modify the bnxt_en, qedf, ice, ixgbe and nfp drivers to use this new
function.

The intent for this is to reduce duplicate code across the various drivers,
and make it easier to write future code that wants to read the DSN. In
particular the ice driver will be using the DSN as its serial number when
implementing the DEVLINK_CMD_INFO_GET.

The new implementation in v2 significantly simplifies some of the callers
which just want to print the value out in MSB order. By returning things as
a u64 in CPU Endian order, the "%016llX" printf format specifier can be used
to correctly format the value.

Per patch changes since v1
  PCI: Introduce pci_get_dsn
  * Update commit message based on feedback from Bjorn Helgaas
  * Modify the function to return a u64 (zero on no capability)
  * This new implementation ensures that the first dword is the lower 32
    bits and the second dword is the upper 32 bits.

  bnxt_en: Use pci_get_dsn()
  * Use the u64 return value from pci_get_dsn()
  * Copy it into the dsn[] array by using put_unaligned_le64
  * Fix a pre-existing typo in the netdev_info error message

  scsi: qedf: Use pci_get_dsn()
  * Use the u64 return value from pci_get_dsn()
  * simplify the snprintf to use "%016llX"
  * remove the unused 'i' variable

  ice: Use pci_get_dsn()
  * Use the u64 return value from pci_get_dsn()
  * simplify the snprintf to use "%016llX"

  ixgbe: Use pci_get_dsn()
  * Use the u64 return value from pci_get_dsn()
  * simplify the snprintf to use "%016llX"

  nfp: Use pci_get_dsn()
  * Added in v2
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:37:46 -08:00
Jacob Keller
61600112f0 nfp: Use pci_get_dsn()
Use the newly added pci_get_dsn() function for obtaining the 64-bit
Device Serial Number in the nfp6000_read_serial and
nfp_6000_get_interface functions.

pci_get_dsn() reports the Device Serial number as a u64 value created by
combining two pci_read_config_dword functions. The lower 16 bits
represent the device interface value, and the next 48 bits represent the
serial value. Use put_unaligned_be32 and put_unaligned_be16 to convert
the serial value portion into a Big Endian formatted serial u8 array.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:37:32 -08:00
Jacob Keller
f998958df2 ixgbe: Use pci_get_dsn()
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().

The original code used a simple for-loop to read the bytes in order into
a buffer one byte at a time.

The pci_get_dsn() function returns the DSN as a u64, correctly ordering
the upper and lower 32 bit dwords. Simplify the display code by using
%016llX to display the u64 DSN.

This should have equivalent behavior on both Little and Big Endian
systems. The bus will have correctly ordered the dwords in the CPU
endian format, while pci_get_dsn() will correctly order the lower and
higher dwords into a u64.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:46 -08:00
Jacob Keller
ceb2f00707 ice: Use pci_get_dsn()
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().

The pci_get_dsn() function will perform two pci_read_config_dword calls
to read the lower and upper config dwords. It bitwise ORs them into
a u64 value. Instead of using put_unaligned_le32 to convert the value to
LE32 format, just use the %016llX printf specifier. This will print the
u64 correct, putting the most significant byte of the value first. Since
pci_get_dsn() correctly orders the two dwords into a u64, this should
produce equivalent results in less code.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:24 -08:00
Jacob Keller
dbce64cbee scsi: qedf: Use pci_get_dsn()
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().

The original code used a for-loop that looped over each of the 8 bytes
and copied them into a temporary buffer. pci_get_dsn() uses two calls to
pci_read_config_dword, and correctly bitwise ORs them into a u64. Thus,
we can simplify the snprintf significantly using %016llX on a u64 value.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:24 -08:00
Jacob Keller
8d85b75b4e bnxt_en: Use pci_get_dsn()
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().

Use of put_unaligned_le64 should be correct. pci_get_dsn() will perform
two pci_read_config_dword calls. The first dword will be placed in the
first 32 bits of the u64, while the second dword will be placed in the
upper 32 bits of the u64.

On Little Endian systems, the least significant byte comes first, which
will be the least significant byte of the first dword, followed by the
least significant byte of the second dword. Since the _le32 variations
do not perform byte swapping, we will correctly copy the dwords into the
dsn[] array in the same order as before.

On Big Endian systems, the most significant byte of the second dword
will come first. put_unaligned_le64 will perform a CPU_TO_LE64, which
will swap things correctly before copying. This should also end up with
the correct bytes in the dsn[] array.

While at it, fix a small typo in the netdev_info error message when the
DSN cannot be read.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:24 -08:00
Jacob Keller
70c0923b0e PCI: Introduce pci_get_dsn
Several device drivers read their Device Serial Number from the PCIe
extended config space.

Introduce a new helper function, pci_get_dsn(). This function reads the
eight bytes of the DSN and returns them as a u64. If the capability does not
exist for the device, the function returns 0.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:24 -08:00
Tina Zhang
2fa7e15c5f drm/i915/gvt: Fix emulated vbt size issue
The emulated vbt doesn't tell its size correctly. According to the
intel_vbt_defs.h, vbt_header.vbt_size should the size of VBT (VBT Header,
BDB Header and data blocks), and bdb_header.bdb_size should be the size
of BDB (BDB Header and data blocks).

This patch fixes the issue and lets vbt provided by GVT-g pass the guest
i915's sanity test.

v2: refine the commit message. (Zhenyu)

Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200305131600.29640-1-tina.zhang@intel.com
2020-03-06 09:35:30 +08:00
Matthew Wilcox (Oracle)
367ab29e3d ibmveth: Remove unused page_offset macro
We already have a function called page_offset(), and this macro
is unused, so just delete it.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:35:06 -08:00
Heiko Stuebner
5b6603360c drm/panel: add panel driver for Elida KD35T133 panels
Panel driver for the KD35T133 display from Elida, used for example
in the rk3326-based Odroid Go Advance handheld.

changes in v3:
- add missing return value assignment (Francesco)
- re-sort header includes (Sam)
changes in v2:
- rename dsi_generic_write_seq macro to dsi_dcs_write_seq to honor
  the underlying mipi_dsi_dcs_write (Robin)

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200229151506.750242-3-heiko@sntech.de
2020-03-06 02:34:24 +01:00
Jiang Lidong
e25d5dbcff veth: ignore peer tx_dropped when counting local rx_dropped
When local NET_RX backlog is full due to traffic overrun,
peer veth tx_dropped counter increases. At that time, list
local veth stats, rx_dropped has double value of peer
tx_dropped, even bigger than transmit packets by peer.

In NET_RX softirq process, if any packet drop case happens,
it increases dev's rx_dropped counter and returns NET_RX_DROP.

At veth tx side, it records any error returned from peer netif_rx
into local dev tx_dropped counter.

In veth get stats process, it puts local dev rx_dropped and
peer dev tx_dropped into together as local rx_drpped value.
So that it shows double value of real dropped packets number in
this case.

This patch ignores peer tx_dropped when counting local rx_dropped,
since peer tx_dropped is duplicated to local rx_dropped at most cases.

Signed-off-by: Jiang Lidong <jianglidong3@jd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:33:57 -08:00
Stefan Agner
7548bf8c17 crypto: arm/ghash-ce - define fpu before fpu registers are referenced
Building ARMv7 with Clang's integrated assembler leads to errors such
as:
arch/arm/crypto/ghash-ce-core.S:34:11: error: register name expected
 t3l .req d16
          ^

Since no FPU has selected yet Clang considers d16 not a valid register.
Moving the FPU directive on-top allows Clang to parse the registers and
allows to successfully build this file with Clang's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:25 +11:00
Jason A. Donenfeld
dc7fc3a53a crypto: x86/curve25519 - leave r12 as spare register
This updates to the newer register selection proved by HACL*, which
leads to a more compact instruction encoding, and saves around 100
cycles.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:25 +11:00
Andrei Botila
3f142b6a7b crypto: caam - update xts sector size for large input length
Since in the software implementation of XTS-AES there is
no notion of sector every input length is processed the same way.
CAAM implementation has the notion of sector which causes different
results between the software implementation and the one in CAAM
for input lengths bigger than 512 bytes.
Increase sector size to maximum value on 16 bits.

Fixes: c6415a6016 ("crypto: caam - add support for acipher xts(aes)")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Andrei Botila <andrei.botila@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:25 +11:00
Horia Geantă
3a5a9e1ef3 crypto: caam/qi2 - fix chacha20 data size error
HW generates a Data Size error for chacha20 requests that are not
a multiple of 64B, since algorithm state (AS) does not have
the FINAL bit set.

Since updating req->iv (for chaining) is not required,
modify skcipher descriptors to set the FINAL bit for chacha20.

[Note that for skcipher decryption we know that ctx1_iv_off is 0,
which allows for an optimization by not checking algorithm type,
since append_dec_op1() sets FINAL bit for all algorithms except AES.]

Also drop the descriptor operations that save the IV.
However, in order to keep code logic simple, things like
S/G tables generation etc. are not touched.

Cc: <stable@vger.kernel.org> # v5.3+
Fixes: 334d37c9e2 ("crypto: caam - update IV using HW support")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Tested-by: Valentin Ciocoi Radulescu <valentin.ciocoi@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:25 +11:00
Vinay Kumar Yadav
a838800688 crypto: chelsio/chtls - Fixed boolinit.cocci warning
crypto: chtls - Fixed boolinit.cocci warning

Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Hongbo Yao
47c16b4499 crypto: hisilicon - qm depends on UACCE
If UACCE=m and CRYPTO_DEV_HISI_QM=y, the following error
is seen while building qm.o:

drivers/crypto/hisilicon/qm.o: In function `hisi_qm_init':
(.text+0x23c6): undefined reference to `uacce_alloc'
(.text+0x2474): undefined reference to `uacce_remove'
(.text+0x286b): undefined reference to `uacce_remove'
drivers/crypto/hisilicon/qm.o: In function `hisi_qm_uninit':
(.text+0x2918): undefined reference to `uacce_remove'
make[1]: *** [vmlinux] Error 1
make: *** [autoksyms_recursive] Error 2

This patch fixes the config dependency for QM and ZIP.

reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Hongbo Yao <yaohongbo@huawei.com>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Zhangfei Gao
acc670dba9 uacce: unmap remaining mmapping from user space
When uacce parent device module is removed, user app may
still keep the mmaped area, which can be accessed unsafely.
When rmmod, Parent device driver will call uacce_remove,
which unmap all remaining mapping from user space for safety.
VM_FAULT_SIGBUS is also reported to user space accordingly.

Suggested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Eric Biggers
732e540953 crypto: xts - simplify error handling in ->create()
Simplify the error handling in the XTS template's ->create() function by
taking advantage of crypto_drop_skcipher() now accepting (as a no-op) a
spawn that hasn't been grabbed yet.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Eric Biggers
0708bb4353 crypto: rsa-pkcs1pad - simplify error handling in pkcs1pad_create()
Simplify the error handling in pkcs1pad_create() by taking advantage of
crypto_grab_akcipher() now handling an ERR_PTR() name and by taking
advantage of crypto_drop_akcipher() now accepting (as a no-op) a spawn
that hasn't been grabbed yet.

While we're at it, also simplify the way the hash_name optional argument
is handled.  We only need to check whether it's present in one place,
and we can just assign directly to ctx->digest_info.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Eric Biggers
07b24c7c08 crypto: pcrypt - simplify error handling in pcrypt_create_aead()
Simplify the error handling in pcrypt_create_aead() by taking advantage
of crypto_grab_aead() now handling an ERR_PTR() name and by taking
advantage of crypto_drop_aead() now accepting (as a no-op) a spawn that
hasn't been grabbed yet.

This required also making padata_free_shell() accept a NULL argument.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:24 +11:00
Eric Biggers
d570631033 crypto: lrw - simplify error handling in create()
Simplify the error handling in the LRW template's ->create() function by
taking advantage of crypto_drop_skcipher() now accepting (as a no-op) a
spawn that hasn't been grabbed yet.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-06 12:28:23 +11:00