In commit c39dfebc77 ("drivers/tty/serial:
make serial/atmel_serial.c explicitly non-modular") we removed the code
relating to modular support since it currently only supports built in.
However, when redoing my build coverage for mips allmodconfig, which
sets CONFIG_OF, I noticed a remaining line that needs to be removed,
else we will get a build failure for an undefined module macro.
Unfortunately this didn't appear for any of the other arch I tested
more frequently, such as ARM.
Since MODULE_DEVICE_TABLE is a no-op for non-modular code, we can just
remove the offending line.
Fixes: c39dfebc77 ("drivers/tty/serial: make serial/atmel_serial.c explicitly non-modular")
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jiri Slaby <jslaby@suse.com>
Reported-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 59dfafd03f
Mark Brown reports that the dts file should not be accepted at this time
as it is not following the convention that has been agreed on for the
ion drivers.
Reported-by: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Yu Dongbin <yudongbin@hisilicon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hayes Wang says:
====================
r8152: code adjustment
Adjust test_bit(), clear_bit(), disable_aldps(), and enable_aldps().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace disable_aldps() and enable_aldps() with aldps_en().
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace test_bit() followed by clear_bit() with test_and_clear_bit().
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the autosuspend is enabled and occurs before system suspend, we should
wake the device before running system syspend. Then, we could change the wake
event for system suspend. Otherwise, the device would resume the system when
receiving any packet.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 651df21835 ("phy: micrel: Fix finding PHY properties in MAC
node.") only fixes finding PHY properties in MAC node for KSZ9021. This
commit applies the same fix for KSZ9031.
Fixes: 8b63ec1837 ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.")
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Henri Roosen <henri.roosen@ginzinger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix invalid read while copying bat_iv.bcast_own by Sven Eckelmann
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Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
Antonio Quartulli says:
====================
Included change:
- Fix invalid read while copying bat_iv.bcast_own by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the details behind the cb[] access into a small helper to decouple
and make them generic for bpf_prog_run_save_cb()/bpf_prog_run_clear_cb()
that was introduced via commit ff936a04e5 ("bpf: fix cb access in socket
filter programs"). Also add a comment to better clarify what is done in
bpf_skb_cb().
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lance Richardson says:
====================
ipv4: fix various issues reported by sparse
This trivial patch series addresses a number of endianness- and
lock-related issues reported by sparse.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add lock release/acquire annotations to ping_seq_start() and
ping_seq_stop() to satisfy sparse.
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fib_multipath_hash() computes a hash using __be32 values, force
cast these to u32 to pacify sparse.
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eliminate endianness mismatch warnings (reported by sparse) in this file by
using appropriate nla_put_*()/nla_get_*() calls.
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This replaces all code in fs/compat_ioctl.c that translated
ioctl arguments into a in-kernel structure, then performed
do_ioctl under set_fs(KERNEL_DS), with code that allocates
data on the user stack and can call the VFS ioctl handler
under USER_DS.
This is done as a hardening measure because the caller
does not know what kind of ioctl handler will be invoked,
only that no corresponding compat_ioctl handler exists and
what the ioctl command number is. The accidental
invocation of an unlocked_ioctl handler that unexpectedly
calls copy_to_user could be a severe security issue.
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
In code in fs/compat_ioctl.c that translates ioctl arguments
into a in-kernel structure, then performs sys_ioctl, possibly
under set_fs(KERNEL_DS), this commit changes the sys_ioctl
calls to do_ioctl calls. do_ioctl is a new function that does
the same thing as sys_ioctl, but doesn't look up the fd again.
This change is made to avoid (potential) security issues
because of ioctl handlers that accept one of the ioctl
commands I2C_FUNCS, VIDEO_GET_EVENT, MTIOCPOS, MTIOCGET,
TIOCGSERIAL, TIOCSSERIAL, RTC_IRQP_READ, RTC_EPOCH_READ.
This can happen for multiple reasons:
- The ioctl command number could be reused.
- The ioctl handler might not check the full ioctl
command. This is e.g. true for drm_ioctl.
- The ioctl handler is very special, e.g. cuse_file_ioctl
The real issue is that set_fs(KERNEL_DS) is used here,
but that's fixed in a separate commit
"compat_ioctl: don't call do_ioctl under set_fs(KERNEL_DS)".
This change mitigates potential security issues by
preventing a race that permits invocation of
unlocked_ioctl handlers under KERNEL_DS through compat
code even if a corresponding compat_ioctl handler exists.
So far, no way has been identified to use this to damage
kernel memory without having CAP_SYS_ADMIN in the init ns
(with the capability, doing reads/writes at arbitrary
kernel addresses should be easy through CUSE's ioctl
handler with FUSE_IOCTL_UNRESTRICTED set).
[AV: two missed sys_ioctl() taken care of]
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next, they are:
1) Release nf_tables objects on netns destructions via
nft_release_afinfo().
2) Destroy basechain and rules on netdevice removal in the new netdev
family.
3) Get rid of defensive check against removal of inactive objects in
nf_tables.
4) Pass down netns pointer to our existing nfnetlink callbacks, as well
as commit() and abort() nfnetlink callbacks.
5) Allow to invert limit expression in nf_tables, so we can throttle
overlimit traffic.
6) Add packet duplication for the netdev family.
7) Add forward expression for the netdev family.
8) Define pr_fmt() in conntrack helpers.
9) Don't leave nfqueue configuration on inconsistent state in case of
errors, from Ken-ichirou MATSUZAWA, follow up patches are also from
him.
10) Skip queue option handling after unbind.
11) Return error on unknown both in nfqueue and nflog command.
12) Autoload ctnetlink when NFQA_CFG_F_CONNTRACK is set.
13) Add new NFTA_SET_USERDATA attribute to store user data in sets,
from Carlos Falgueras.
14) Add support for 64 bit byteordering changes nf_tables, from Florian
Westphal.
15) Add conntrack byte/packet counter matching support to nf_tables,
also from Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When there is an error copying a chunk dm-snapshot can incorrectly hold
associated bios indefinitely, resulting in hung IO.
The function copy_callback sets pe->error if there was error copying the
chunk, and then calls complete_exception. complete_exception calls
pending_complete on error, otherwise it calls commit_exception with
commit_callback (and commit_callback calls complete_exception).
The persistent exception store (dm-snap-persistent.c) assumes that calls
to prepare_exception and commit_exception are paired.
persistent_prepare_exception increases ps->pending_count and
persistent_commit_exception decreases it.
If there is a copy error, persistent_prepare_exception is called but
persistent_commit_exception is not. This results in the variable
ps->pending_count never returning to zero and that causes some pending
exceptions (and their associated bios) to be held forever.
Fix this by unconditionally calling commit_exception regardless of
whether the copy was successful. A new "valid" parameter is added to
commit_exception -- when the copy fails this parameter is set to zero so
that the chunk that failed to copy (and all following chunks) is not
recorded in the snapshot store. Also, remove commit_callback now that
it is merely a wrapper around pending_complete.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
This is the final small set of ARM SoC bug fixes for linux-4.4,
almost all regressions:
OMAP: data corruption on the Nokia N900 flash
Allwinner: Two defconfig change to get USB working again
ARM Versatile: Interrupt numbers gone bad after an older bug fix
Nomadik: Crashes from incorrect L2 cache settings
VIA vt8500: SD/MMC support on WM8650 never worked
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is the final small set of ARM SoC bug fixes for linux-4.4, almost
all regressions:
OMAP:
- data corruption on the Nokia N900 flash
Allwinner:
- Two defconfig change to get USB working again
ARM Versatile:
- Interrupt numbers gone bad after an older bug fix
Nomadik:
- Crashes from incorrect L2 cache settings
VIA vt8500:
- SD/MMC support on WM8650 never worked"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
dts: vt8500: Add SDHC node to DTS file for WM8650
ARM: Fix broken USB support in multi_v7_defconfig for sunxi devices
ARM: versatile: fix MMC/SD interrupt assignment
ARM: nomadik: set latencies to 8 cycles
ARM: OMAP2+: Fix onenand rate detection to avoid filesystem corruption
ARM: Fix broken USB support in sunxi_defconfig
a patch found in your master branch but not yet in the kvm/next branch
that is destined for 4.5.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Paolo Bonzini:
"A simple fix. I'm sending it before the merge window, because it
refines a patch found in your master branch but not yet in the
kvm/next branch that is destined for 4.5"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: only channel 0 of the i8254 is linked to the HPET
Just one obvious fix that adds a missing function argument in
ACPI code introduced recently (Kees Cook).
/
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Merge tag 'pm+acpi-4.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Just one obvious fix that adds a missing function argument in ACPI
code introduced recently (Kees Cook)"
* tag 'pm+acpi-4.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / property: avoid leaking format string into kobject name
Pull x86 fixes from Ingo Molnar:
"A handful of x86 fixes:
- a syscall ABI fix, fixing an Android breakage
- a Xen PV guest fix relating to the RTC device, causing a
non-working console
- a Xen guest syscall stack frame fix
- an MCE hotplug CPU crash fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/numachip: Fix NumaConnect2 MMCFG PCI access
x86/entry: Restore traditional SYSENTER calling convention
x86/entry: Fix some comments
x86/paravirt: Prevent rtc_cmos platform device init on PV guests
x86/xen: Avoid fast syscall path for Xen PV guests
x86/mce: Ensure offline CPUs don't participate in rendezvous process
Pull perf fixes from Ingo Molnar:
"Two core subsystem fixes, plus a handful of tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix race in swevent hash
perf: Fix race in perf_event_exec()
perf list: Robustify event printing routine
perf list: Add support for PERF_COUNT_SW_BPF_OUT
perf hists browser: Fix segfault if use symbol filter in cmdline
perf hists browser: Reset selection when refresh
perf hists browser: Add NULL pointer check to prevent crash
perf buildid-list: Fix return value of perf buildid-list -k
perf buildid-list: Show running kernel build id fix
Have the CB_LAYOUTRECALL code treat NFS4_OK and NFS4ERR_DELAY returns
equivalently. Change the code to periodically resend CB_LAYOUTRECALLS
until the ls_layouts list is empty or the client returns a different
error code.
If we go for two lease periods without the list being emptied or the
client sending a hard error, then we give up and clean out the list
anyway.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Pull block revert from Jens Axboe:
"The previous pull request had a split fix for NVMe, however there are
corner cases where that ends up blowing up.
So let's revert it for 4.4. The regression isn't introduced in this
cycle, and it's "just" a performance regression, not a
stability/integrity issue"
* 'for-linus' of git://git.kernel.dk/linux-block:
Revert "block: Split bios on chunk boundaries"
Commit 2fc251a8dd ("powerpc: Copy only required pieces of the
mm_context_t to the paca") broke the build for CONFIG_PPC_STD_MMU_64=y
and CONFIG_PPC_MM_SLICES=n.
That only happens for a kernel built with 4K pages and HUGETLB disabled,
which is why we missed it.
Fix it by adding a mm_ctx_user_psize member to the paca and populating
it in the appropriate places.
Fixes: 2fc251a8dd ("powerpc: Copy only required pieces of the mm_context_t to the paca")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Commit 5d226df4 has introduced a performance regression of about
10% in the UnixBench pipe benchmark. It turns out that the call
to inode_security in selinux_file_permission can be moved below
the zero-mask test and that inode_security_revalidate can be
removed entirely, which brings us back to roughly the original
performance.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Add an explanation for the flags used by FS_IOC_[GS]ETFLAGS and remind
people that changes should be revised by linux-fsdevel and linux-api.
Add flags that are used on-disk for ext4, and remove FS_DIRECTIO_FL
since it was used only by gfs2 and support was removed in 2008 in
commit c9f6a6bbc2 ("The ability to mark files for direct i/o access
when opened normally is both unused and pointless, so this patch
removes support for that feature.") Now we have _two_ remaining flags
left. But since we want to discourage people from assigning new
flags, that's OK.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This patch adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR ioctl interface
support for ext4. The interface is kept consistent with
XFS_IOC_FSGETXATTR/XFS_IOC_FSGETXATTR.
Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
This patch adds mount options for enabling/disabling project quota
accounting and enforcement. A new specific inode is also used for
project quota accounting.
[ Includes fix from Dan Carpenter to crrect error checking from dqget(). ]
Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
A number of functions include ext4_add_dx_entry, make_indexed_dir,
etc. are being passed a dentry even though the only thing they use is
the containing parent. We can shrink the code size slightly by making
this replacement. This will also be useful in cases where we don't
have a dentry as the argument to the directory entry insert functions.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The pci_sys_data struct was previously used by pci_common_init_dev() and by
the ARM pcibios_align_resource(), but recent commits removed those uses:
cbce790059 ("PCI: designware: Make driver arch-agnostic")
b3a72384fe ("ARM/PCI: Replace pci_sys_data->align_resource with global function pointer")
cbce790059 removed the use of pci_common_init_dev() by DesignWare
drivers, including pcie-rcar.c, and b3a72384fe removed the use of struct
pci_sys_data by the ARM pcibios_align_resource().
Remove struct pci_sys_data from pcie-rcar.c.
[bhelgaas: changelog]
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC [M] drivers/gpu/drm/radeon/r100.o
In file included from drivers/gpu/drm/radeon/radeon_mode.h:37:0,
from drivers/gpu/drm/radeon/radeon.h:80,
from drivers/gpu/drm/radeon/r100.c:33:
drivers/gpu/drm/radeon/r100.c: In function 'r100_bandwidth_update':
include/drm/drm_fixed.h:64:13: warning: 'crit_point_ff.full' may be used uninitialized in this function [-Wmaybe-uninitialized]
u64 tmp = ((u64)A.full << 13);
^
drivers/gpu/drm/radeon/r100.c:3153:63: note: 'crit_point_ff.full' was declared here
fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff;
^
drivers/gpu/drm/radeon/r100.c:3583:42: warning: 'disp_drain_rate.full' may be used uninitialized in this function [-Wmaybe-uninitialized]
temp_ff.full = read_return_rate.full - disp_drain_rate.full;
gcc version 5.3.1 20151219 (Ubuntu 5.3.1-4ubuntu1)
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Check if there really is a valid offset for the BO.
v2: user WARN_ON_ONCE
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: AGD: rebase on upstream
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In case CONFIG_DRM_AMD_POWERPLAY is defined and amdgpu.powerplay=0.
some functions in powrplay can also be called by DAL. and the input parameter is *adev.
if just check point not NULL was not enough and will lead to NULL point error.
V2: AGD: rebase on upstream
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
