Commit Graph

841916 Commits

Author SHA1 Message Date
Ronnie Sahlberg
f5f111c231 cifs: refactor and clean up arguments in the reparse point parsing
Will be helpful as we improve handling of special file types.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:44 -05:00
Steve French
ff2a09e919 SMB3: query inode number on open via create context
We can cut the number of roundtrips on open (may also
help some rename cases as well) by returning the inode
number in the SMB2 open request itself instead of
querying it afterwards via a query FILE_INTERNAL_INFO.
This should significantly improve the performance of
posix open.

Add SMB2_CREATE_QUERY_ON_DISK_ID create context request
on open calls so that when server supports this we
can save a roundtrip for QUERY_INFO on every open.

Follow on patch will add the response processing for
SMB2_CREATE_QUERY_ON_DISK_ID context and optimize
smb2_open_file to avoid the extra network roundtrip
on every posix open. This patch adds the context on
SMB2/SMB3 open requests.

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:44 -05:00
Steve French
96d3cca124 smb3: Send netname context during negotiate protocol
See MS-SMB2 2.2.3.1.4

Allows hostname to be used by load balancers

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
9fe5ff1c5d smb3: do not send compression info by default
Since in theory a server could respond with compressed read
responses even if not requested on read request (assuming that
a compression negcontext is sent in negotiate protocol) - do
not send compression information during negotiate protocol
unless the user asks for compression explicitly (compression
is experimental), and add a mount warning that compression
is experimental.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-07-07 22:37:43 -05:00
Steve French
412094a8fb smb3: add new mount option to retrieve mode from special ACE
There is a special ACE used by some servers to allow the mode
bits to be stored.  This can be especially helpful in scenarios
in which the client is trusted, and access checking on the
client vs the POSIX mode bits is sufficient.

Add mount option to allow enabling this behavior.
Follow on patch will add support for chmod and queryinfo
(stat) by retrieving the POSIX mode bits from the special
ACE, SID: S-1-5-88-3

See e.g.
https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/hh509017(v=ws.10)

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-07-07 22:37:43 -05:00
Steve French
d5ecebc490 smb3: Allow query of symlinks stored as reparse points
The 'NFS' style symlinks (see MS-FSCC 2.1.2.4) were not
being queried properly in query_symlink. Fix this.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-07-07 22:37:43 -05:00
Ronnie Sahlberg
f2caf901c1 cifs: Fix a race condition with cifs_echo_request
There is a race condition with how we send (or supress and don't send)
smb echos that will cause the client to incorrectly think the
server is unresponsive and thus needs to be reconnected.

Summary of the race condition:
 1) Daisy chaining scheduling creates a gap.
 2) If traffic comes unfortunate shortly after
    the last echo, the planned echo is suppressed.
 3) Due to the gap, the next echo transmission is delayed
    until after the timeout, which is set hard to twice
    the echo interval.

This is fixed by changing the timeouts from 2 to three times the echo interval.

Detailed description of the bug: https://lutz.donnerhacke.de/eng/Blog/Groundhog-Day-with-SMB-remount

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Ronnie Sahlberg
3e2725796c cifs: always add credits back for unsolicited PDUs
not just if CONFIG_CIFS_DEBUG2 is enabled.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Hariprasad Kelam
0aa3a24be0 fs: cifs: cifsssmb: Change return type of convert_ace_to_cifs_ace
Change return from int to void of  convert_ace_to_cifs_ace as it never
fails.

fixes below issue reported by coccicheck
fs/cifs/cifssmb.c:3606:7-9: Unneeded variable: "rc". Return "0" on line
3620

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
e7348e35a3 add some missing definitions
query on disk id structure definition was missing

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Colin Ian King
63d614a608 cifs: fix typo in debug message with struct field ia_valid
Field ia_valid is being debugged with the field name iavalid, fix this.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Aurelien Aptel
3190b59a05 smb3: minor cleanup of compound_send_recv
Trivial cleanup. Will make future multichannel code smaller
as well.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
e7a1a2df4d CIFS: Fix module dependency
KEYS is required not that CONFIG_CIFS_ACL is always on
and the ifdef for it removed.

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
73cf8085dc cifs: simplify code by removing CONFIG_CIFS_ACL ifdef
SMB3 ACL support is needed for many use cases now and should not be
ifdeffed out, even for SMB1 (CIFS).  Remove the CONFIG_CIFS_ACL
ifdef so ACL support is always built into cifs.ko

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
6552d6a026 cifs: Fix check for matching with existing mount
If we mount the same share twice, we check the flags to see if the
second mount matches the earlier mount, but we left some flags out.

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Paulo Alcantara (SUSE)
29fbeb7a90 cifs: Properly handle auto disabling of serverino option
Fix mount options comparison when serverino option is turned off later
in cifs_autodisable_serverino() and thus avoiding mismatch of new cifs
mounts.

Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <paulo@paulo.ac>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilove@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
dc179268cd smb3: if max_credits is specified then display it in /proc/mounts
If "max_credits" is overridden from its default by specifying
it on the smb3 mount then display it in /proc/mounts

Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:43 -05:00
Steve French
43cdae88de Fix match_server check to allow for auto dialect negotiate
When using multidialect negotiate (default or specifying vers=3.0 which
allows any smb3 dialect), fix how we check for an existing server session.
Before this fix if you mounted a second time to the same server (e.g. a
different share on the same server) we would only reuse the existing smb
session if a single dialect were requested (e.g. specifying vers=2.1 or vers=3.0
or vers=3.1.1 on the mount command). If a default mount (e.g. not
specifying vers=) is done then would always create a new socket connection
and SMB3 (or SMB3.1.1) session each time we connect to a different share
on the same server rather than reusing the existing one.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-07-07 22:37:42 -05:00
Aurelien Aptel
5fc3681fa5 cifs: add missing GCM module dependency
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:42 -05:00
Steve French
2b2f754807 SMB3.1.1: Add GCM crypto to the encrypt and decrypt functions
SMB3.1.1 GCM performs much better than the older CCM default:
more than twice as fast in the write patch (copy to the Samba
server on localhost for example) and 80% faster on the read
patch (copy from the server).

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-07-07 22:37:42 -05:00
Steve French
9ac63ec776 SMB3: Add SMB3.1.1 GCM to negotiated crypto algorigthms
GCM is faster. Request it during negotiate protocol.
Followon patch will add callouts to GCM crypto

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-07-07 22:37:42 -05:00
Kefeng Wang
06f2fca7ff fs: cifs: Drop unlikely before IS_ERR(_OR_NULL)
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag,
so no need to do that again from its callers. Drop it.

Cc: linux-cifs@vger.kernel.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
2019-07-07 22:37:42 -05:00
YueHaibing
d81f09748d cifs: Use kmemdup in SMB2_ioctl_init()
Use kmemdup rather than duplicating its implementation

This was reported by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-07-07 22:37:42 -05:00
Linus Torvalds
0ecfebd2b5 Linux 5.2 2019-07-07 15:41:56 -07:00
Linus Torvalds
46713c3d2f for-linus-20190706
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Merge tag 'for-linus-20190706' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Just a single fix for a patch from Greg KH, which reportedly break
  block debugfs locations for certain setups. Trivial enough that I
  think we should include it now, rather than wait and release 5.2 with
  it, since it's a regression in this series"

* tag 'for-linus-20190706' of git://git.kernel.dk/linux-block:
  blk-mq: fix up placement of debugfs directory of queue files
2019-07-06 11:48:39 -07:00
Linus Torvalds
bcc0e65f47 A few more MIPS fixes:
- Fix a silly typo in virt_addr_valid which led to completely bogus
   behavior (that happened to stop tripping up hardened usercopy despite
   being broken).
 
 - Fix UART parity setup on AR933x systems.
 
 - A build fix for non-Linux build machines.
 
 - Have the 'all' make target build DTBs, primarily to fit in with the
   behavior of scripts/package/builddeb.
 
 - Handle an execution hazard in TLB exceptions that use KScratch
   registers, which could inadvertently clobber the $1 register on some
   generally higher-end out-of-order CPUs.
 
 - A MAINTAINERS update to fix the path to the NAND driver for Ingenic
   systems.
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Merge tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:
 "A few more MIPS fixes:

   - Fix a silly typo in virt_addr_valid which led to completely bogus
     behavior (that happened to stop tripping up hardened usercopy
     despite being broken).

   - Fix UART parity setup on AR933x systems.

   - A build fix for non-Linux build machines.

   - Have the 'all' make target build DTBs, primarily to fit in with the
     behavior of scripts/package/builddeb.

   - Handle an execution hazard in TLB exceptions that use KScratch
     registers, which could inadvertently clobber the $1 register on
     some generally higher-end out-of-order CPUs.

   - A MAINTAINERS update to fix the path to the NAND driver for Ingenic
     systems"

* tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MAINTAINERS: Correct path to moved files
  MIPS: Add missing EHB in mtc0 -> mfc0 sequence.
  MIPS: have "plain" make calls build dtbs for selected platforms
  MIPS: fix build on non-linux hosts
  MIPS: ath79: fix ar933x uart parity mode
  MIPS: Fix bounds check virt_addr_valid
2019-07-06 10:32:12 -07:00
Linus Torvalds
2692982b08 dmaengine fixes for v5.2
The fixes for 5.2 are:
  - bam_dma fix for completed descriptor count
  - fix for imx-sdma remove BD_INTR for channel0 and use-after-free on
    probe error path
  - endian bug fix in jz4780 IRQ handler
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Merge tag 'dmaengine-fix-5.2' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:

 - bam_dma fix for completed descriptor count

 - fix for imx-sdma remove BD_INTR for channel0 and use-after-free on
   probe error path

 - endian bug fix in jz4780 IRQ handler

* tag 'dmaengine-fix-5.2' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: qcom: bam_dma: Fix completed descriptors count
  dmaengine: imx-sdma: remove BD_INTR for channel0
  dmaengine: imx-sdma: fix use-after-free on probe error path
  dmaengine: jz4780: Fix an endian bug in IRQ handler
2019-07-06 10:06:37 -07:00
Linus Torvalds
4f8b49092c SCSI fixes on 20190705
Two iscsi fixes.  One for an oops in the client which can be triggered
 by the server authentication protocol and the other in the target code
 which causes data corruption.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two iscsi fixes.

  One for an oops in the client which can be triggered by the server
  authentication protocol and the other in the target code which causes
  data corruption"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
  scsi: target/iblock: Fix overrun in WRITE SAME emulation
2019-07-06 09:56:20 -07:00
Linus Torvalds
ceacbc0e14 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixlet from Al Viro:
 "Fix bogus default y in Kconfig (VALIDATE_FS_PARSER)

  That thing should not be turned on by default, especially since it's
  not quiet in case it finds no problems. Geert has sent the obvious fix
  quite a few times, but it fell through the cracks"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: VALIDATE_FS_PARSER should default to n
2019-07-06 09:53:08 -07:00
Greg Kroah-Hartman
7e41c3c9b6 blk-mq: fix up placement of debugfs directory of queue files
When the blk-mq debugfs file creation logic was "cleaned up" it was
cleaned up too much, causing the queue file to not be created in the
correct location.  Turns out the check for the directory being present
is needed as if that has not happened yet, the files should not be
created, and the function will be called later on in the initialization
code so that the files can be created in the correct location.

Fixes: 6cfc0081b0 ("blk-mq: no need to check return value of debugfs_create functions")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-block@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-06 10:07:38 -06:00
Linus Torvalds
69bf4b6b54 Revert "mm: page cache: store only head pages in i_pages"
This reverts commit 5fd4ca2d84.

Mikhail Gavrilov reports that it causes the VM_BUG_ON_PAGE() in
__delete_from_swap_cache() to trigger:

   page:ffffd6d34dff0000 refcount:1 mapcount:1 mapping:ffff97812323a689 index:0xfecec363
   anon
   flags: 0x17fffe00080034(uptodate|lru|active|swapbacked)
   raw: 0017fffe00080034 ffffd6d34c67c508 ffffd6d3504b8d48 ffff97812323a689
   raw: 00000000fecec363 0000000000000000 0000000100000000 ffff978433ace000
   page dumped because: VM_BUG_ON_PAGE(entry != page)
   page->mem_cgroup:ffff978433ace000
   ------------[ cut here ]------------
   kernel BUG at mm/swap_state.c:170!
   invalid opcode: 0000 [#1] SMP NOPTI
   CPU: 1 PID: 221 Comm: kswapd0 Not tainted 5.2.0-0.rc2.git0.1.fc31.x86_64 #1
   Hardware name: System manufacturer System Product Name/ROG STRIX X470-I GAMING, BIOS 2202 04/11/2019
   RIP: 0010:__delete_from_swap_cache+0x20d/0x240
   Code: 30 65 48 33 04 25 28 00 00 00 75 4a 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c6 2f dc 0f 8a 48 89 c7 e8 93 1b fd ff <0f> 0b 48 c7 c6 a8 74 0f 8a e8 85 1b fd ff 0f 0b 48 c7 c6 a8 7d 0f
   RSP: 0018:ffffa982036e7980 EFLAGS: 00010046
   RAX: 0000000000000021 RBX: 0000000000000040 RCX: 0000000000000006
   RDX: 0000000000000000 RSI: 0000000000000086 RDI: ffff97843d657900
   RBP: 0000000000000001 R08: ffffa982036e7835 R09: 0000000000000535
   R10: ffff97845e21a46c R11: ffffa982036e7835 R12: ffff978426387120
   R13: 0000000000000000 R14: ffffd6d34dff0040 R15: ffffd6d34dff0000
   FS:  0000000000000000(0000) GS:ffff97843d640000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 00002cba88ef5000 CR3: 000000078a97c000 CR4: 00000000003406e0
   Call Trace:
    delete_from_swap_cache+0x46/0xa0
    try_to_free_swap+0xbc/0x110
    swap_writepage+0x13/0x70
    pageout.isra.0+0x13c/0x350
    shrink_page_list+0xc14/0xdf0
    shrink_inactive_list+0x1e5/0x3c0
    shrink_node_memcg+0x202/0x760
    shrink_node+0xe0/0x470
    balance_pgdat+0x2d1/0x510
    kswapd+0x220/0x420
    kthread+0xfb/0x130
    ret_from_fork+0x22/0x40

and it's not immediately obvious why it happens.  It's too late in the
rc cycle to do anything but revert for now.

Link: https://lore.kernel.org/lkml/CABXGCsN9mYmBD-4GaaeW_NrDu+FDXLzr_6x+XNxfmFV6QkYCDg@mail.gmail.com/
Reported-and-bisected-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Suggested-by: Jan Kara <jack@suse.cz>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-05 19:55:18 -07:00
Linus Torvalds
9fdb86c8cf x86 bugfix patches and one compilation fix for ARM.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86 bugfix patches and one compilation fix for ARM"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: arm64/sve: Fix vq_present() macro to yield a bool
  KVM: LAPIC: Fix pending interrupt in IRR blocked by software disable LAPIC
  KVM: nVMX: Change KVM_STATE_NESTED_EVMCS to signal vmcs12 is copied from eVMCS
  KVM: nVMX: Allow restore nested-state to enable eVMCS when vCPU in SMM
  KVM: x86: degrade WARN to pr_warn_ratelimited
2019-07-05 19:13:24 -07:00
Linus Torvalds
0e63665a1b - Fix the memory organization structure of a Macronix SPI-NAND chip.
- Fix a build dependency wrongly described.
 - Fix the sunxi NAND driver for A23/A33 SoCs by 1/ reverting the
   faulty commit introducing broken DMA support and 2/ applying another
   commit bringing working DMA support.
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Merge tag 'mtd/fixes-for-5.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtf fixes from Miquel Raynal:

 - Fix the memory organization structure of a Macronix SPI-NAND chip.

 - Fix a build dependency wrongly described.

 - Fix the sunxi NAND driver for A23/A33 SoCs by (a) reverting the
   faulty commit introducing broken DMA support and (b) applying another
   commit bringing working DMA support.

* tag 'mtd/fixes-for-5.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: sunxi: Add A23/A33 DMA support with extra MBUS configuration
  Revert "mtd: rawnand: sunxi: Add A23/A33 DMA support"
  mtd: rawnand: ingenic: Fix ingenic_ecc dependency
  mtd: spinand: Fix max_bad_eraseblocks_per_lun info in memorg
2019-07-05 19:07:57 -07:00
Linus Torvalds
881ed91f7d Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixlet from Wolfram Sang:
 "I2C has a MAINTAINERS update which will be benfitial for developers,
  so let's add it right away"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: tegra: Add Dmitry as a reviewer
2019-07-05 19:04:57 -07:00
Linus Torvalds
a8f46b5afe Two more quick bugfixes for nfsd, fixing a regression causing mount
failures on high-memory machines and fixing the DRC over RDMA.
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Merge tag 'nfsd-5.2-2' of git://linux-nfs.org/~bfields/linux

Pull nfsd fixes from Bruce Fields:
 "Two more quick bugfixes for nfsd: fixing a regression causing mount
  failures on high-memory machines and fixing the DRC over RDMA"

* tag 'nfsd-5.2-2' of git://linux-nfs.org/~bfields/linux:
  nfsd: Fix overflow causing non-working mounts on 1 TB machines
  svcrdma: Ignore source port when computing DRC hash
2019-07-05 19:00:37 -07:00
Miquel Raynal
c7a87ceb17 mtd: rawnand: sunxi: Add A23/A33 DMA support with extra MBUS configuration
Allwinner NAND controllers can make use of DMA to enhance the I/O
throughput thanks to ECC pipelining. DMA handling with A23/A33 NAND IP
is a bit different than with the older SoCs, hence the introduction of
a new compatible to handle:
* the differences between register offsets,
* the burst length change from 4 to minimum 8,
* manage SRAM accesses through MBUS with extra configuration.

Fixes: c49836f05a ("mtd: rawnand: sunxi: Add A23/A33 DMA support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-07-05 22:30:58 +02:00
Miquel Raynal
4f032640bf Revert "mtd: rawnand: sunxi: Add A23/A33 DMA support"
This reverts commit c49836f05a.

The commit is wrong and its approach actually does not work. Let's
revert it in order to add the feature with a clean patch.

Fixes: c49836f05a ("mtd: rawnand: sunxi: Add A23/A33 DMA support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-07-05 22:30:58 +02:00
Dmitry Osipenko
f3a3ea28ed i2c: tegra: Add Dmitry as a reviewer
I'm contributing to Tegra's upstream development in general and happened
to review the Tegra's I2C patches for awhile because I'm actively using
upstream kernel on all of my Tegra-powered devices and initially some of
the submitted patches were getting my attention since they were causing
problems. Recently Wolfram Sang asked whether I'm interested in becoming
a reviewer for the driver and I don't mind at all.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[wsa: ack was expressed by Thierry Reding in a mail thread]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-07-05 20:46:56 +02:00
Geert Uytterhoeven
75f2d86b20 fs: VALIDATE_FS_PARSER should default to n
CONFIG_VALIDATE_FS_PARSER is a debugging tool to check that the parser
tables are vaguely sane.  It was set to default to 'Y' for the moment to
catch errors in upcoming fs conversion development.

Make sure it is not enabled by default in the final release of v5.1.

Fixes: 31d921c7fb ("vfs: Add configuration parser helpers")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-07-05 11:22:11 -04:00
Zhang Lei
e644fa18e2 KVM: arm64/sve: Fix vq_present() macro to yield a bool
The original implementation of vq_present() relied on aggressive
inlining in order for the compiler to know that the code is
correct, due to some const-casting issues.  This was causing sparse
and clang to complain, while GCC compiled cleanly.

Commit 0c529ff789 addressed this problem, but since vq_present()
is no longer a function, there is now no implicit casting of the
returned value to the return type (bool).

In set_sve_vls(), this uncast bit value is compared against a bool,
and so may spuriously compare as unequal when both are nonzero.  As
a result, KVM may reject valid SVE vector length configurations as
invalid, and vice versa.

Fix it by forcing the returned value to a bool.

Signed-off-by: Zhang Lei <zhang.lei@jp.fujitsu.com>
Fixes: 0c529ff789 ("KVM: arm64: Implement vq_present() as a macro")
Signed-off-by: Dave Martin <Dave.Martin@arm.com> [commit message rewrite]
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-05 12:07:51 +02:00
Sricharan R
f603422544 dmaengine: qcom: bam_dma: Fix completed descriptors count
One space is left unused in circular FIFO to differentiate
'full' and 'empty' cases. So take that in to account while
counting for the descriptors completed.

Fixes the issue reported here,
	https://lkml.org/lkml/2019/6/18/669

Cc: stable@vger.kernel.org
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-05 13:18:27 +05:30
Robin Gong
3f93a4f297 dmaengine: imx-sdma: remove BD_INTR for channel0
It is possible for an irq triggered by channel0 to be received later
after clks are disabled once firmware loaded during sdma probe. If
that happens then clearing them by writing to SDMA_H_INTR won't work
and the kernel will hang processing infinite interrupts. Actually,
don't need interrupt triggered on channel0 since it's pollling
SDMA_H_STATSTOP to know channel0 done rather than interrupt in
current code, just clear BD_INTR to disable channel0 interrupt to
avoid the above case.
This issue was brought by commit 1d069bfa3c ("dmaengine: imx-sdma:
ack channel 0 IRQ in the interrupt handler") which didn't take care
the above case.

Fixes: 1d069bfa3c ("dmaengine: imx-sdma: ack channel 0 IRQ in the interrupt handler")
Cc: stable@vger.kernel.org #5.0+
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reported-by: Sven Van Asbroeck <thesven73@gmail.com>
Tested-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-05 13:15:37 +05:30
Sven Van Asbroeck
2b8066c3de dmaengine: imx-sdma: fix use-after-free on probe error path
If probe() fails anywhere beyond the point where
sdma_get_firmware() is called, then a kernel oops may occur.

Problematic sequence of events:
1. probe() calls sdma_get_firmware(), which schedules the
   firmware callback to run when firmware becomes available,
   using the sdma instance structure as the context
2. probe() encounters an error, which deallocates the
   sdma instance structure
3. firmware becomes available, firmware callback is
   called with deallocated sdma instance structure
4. use after free - kernel oops !

Solution: only attempt to load firmware when we're certain
that probe() will succeed. This guarantees that the firmware
callback's context will remain valid.

Note that the remove() path is unaffected by this issue: the
firmware loader will increment the driver module's use count,
ensuring that the module cannot be unloaded while the
firmware callback is pending or running.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
[vkoul: fixed braces for if condition]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-05 12:58:54 +05:30
Dan Carpenter
4c89cc73d1 dmaengine: jz4780: Fix an endian bug in IRQ handler
The "pending" variable was a u32 but we cast it to an unsigned long
pointer when we do the for_each_set_bit() loop.  The problem is that on
big endian 64bit systems that results in an out of bounds read.

Fixes: 4e4106f5e9 ("dmaengine: jz4780: Fix transfers being ACKed too soon")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-05 12:45:56 +05:30
Linus Torvalds
3f9c4dc633 drm imx, i915, amdgpu, panfrost, virtio, etnaviv fixes
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Merge tag 'drm-fixes-2019-07-05-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "I skipped last week because there wasn't much worth doing, this week
  got a few more fixes in.

  amdgpu:
   - default register value change
   - runpm regression fix
   - fan control fix

  i915:
   - fix Ironlake regression

  panfrost:
   - fix a double free

  virtio:
   - fix a locking bug

  imx:
   - crtc disable fixes"

* tag 'drm-fixes-2019-07-05-1' of git://anongit.freedesktop.org/drm/drm:
  drm/imx: only send event on crtc disable if kept disabled
  drm/imx: notify drm core before sending event during crtc disable
  drm/i915/ringbuffer: EMIT_INVALIDATE *before* switch context
  drm/amdgpu/gfx9: use reset default for PA_SC_FIFO_SIZE
  drm/amdgpu: Don't skip display settings in hwmgr_resume()
  drm/amd/powerplay: use hardware fan control if no powerplay fan table
  drm/panfrost: Fix a double-free error
  drm/etnaviv: add missing failure path to destroy suballoc
  drm/virtio: move drm_connector_update_edid_property() call
2019-07-05 14:10:30 +09:00
Dave Airlie
a0b2cf792a drm/imx: fix stale vblank timestamp after a modeset
This series fixes stale vblank timestamps in the first event sent after
 a crtc was disabled. The core now is notified via drm_crtc_vblank_off
 before sending the last pending event in atomic_disable. If the crtc is
 reenabled right away during to a modeset, the event is not sent at all,
 as the next vblank will take care of it.
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Merge tag 'imx-drm-fixes-2019-07-04' of git://git.pengutronix.de/git/pza/linux into drm-fixes

drm/imx: fix stale vblank timestamp after a modeset

This series fixes stale vblank timestamps in the first event sent after
a crtc was disabled. The core now is notified via drm_crtc_vblank_off
before sending the last pending event in atomic_disable. If the crtc is
reenabled right away during to a modeset, the event is not sent at all,
as the next vblank will take care of it.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1562237119.6641.16.camel@pengutronix.de
2019-07-05 14:51:03 +10:00
Linus Torvalds
ee39d46dca Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes two memory leaks and a list corruption bug"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: user - prevent operating on larval algorithms
  crypto: cryptd - Fix skcipher instance memory leak
  lib/mpi: Fix karactx leak in mpi_powm
2019-07-05 13:31:19 +09:00
Linus Torvalds
a5fff14a0c Merge branch 'akpm' (patches from Andrew)
Merge more fixes from Andrew Morton:
 "5 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  swap_readpage(): avoid blk_wake_io_task() if !synchronous
  devres: allow const resource arguments
  mm/vmscan.c: prevent useless kswapd loops
  fs/userfaultfd.c: disable irqs for fault_pending and event locks
  mm/page_alloc.c: fix regression with deferred struct page init
2019-07-05 11:39:56 +09:00
Linus Torvalds
ecbe5086ad ARM: SoC fixes
Likely our final small batch of fixes for 5.2:
 
  - Some fixes for USB on davinci, regressions were due to the recent
    conversion of the OCHI driver to use GPIO regulators
 
  - A fixup of kconfig dependencies for a TI irq controller
 
  - A switch of armada-38x to avoid dropped characters on uart, caused by
    switch of base inherited platform description earlier this year
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "Likely our final small batch of fixes for 5.2:

   - Some fixes for USB on davinci, regressions were due to the recent
     conversion of the OCHI driver to use GPIO regulators

   - A fixup of kconfig dependencies for a TI irq controller

   - A switch of armada-38x to avoid dropped characters on uart, caused
     by switch of base inherited platform description earlier this year"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: davinci: da830-evm: fix GPIO lookup for OHCI
  ARM: davinci: omapl138-hawk: add missing regulator constraints for OHCI
  ARM: davinci: da830-evm: add missing regulator constraints for OHCI
  soc: ti: fix irq-ti-sci link error
  ARM: dts: armada-xp-98dx3236: Switch to armada-38x-uart serial node
2019-07-05 11:35:45 +09:00
Linus Torvalds
cde357c392 dax fix v5.2-rc8
- Fix xarray entry association for mixed mappings
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Merge tag 'dax-fix-5.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull dax fix from Dan Williams:
 "A single dax fix that has been soaking awaiting other fixes under
  discussion to join it. As it is getting late in the cycle lets proceed
  with this fix and save follow-on changes for post-v5.3-rc1.

   - Fix xarray entry association for mixed mappings"

* tag 'dax-fix-5.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: Fix xarray entry association for mixed mappings
2019-07-05 11:32:11 +09:00