Rather than reporting success for a short transfer due to interrupt
latency, report an error both to the caller, as well as to the kernel
log.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The probe function requests the interrupt before initializing
the ddp component. Which leads to a null pointer dereference at boot.
Fix this by requesting the interrput after all components got
initialized properly.
Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC
MT8173.")
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Change-Id: I57193a7ab554dfb37c35a455900689333adf511c
Tune dsi frame rate by pixel clock, dsi add some extra signal (i.e.
Tlpx, Ths-prepare, Ths-zero, Ths-trail,Ths-exit) when enter and exit LP
mode, those signals will cause h-time larger than normal and reduce FPS.
So need to multiply a coefficient to offset the extra signal's effect.
coefficient = ((htotal*bpp/lane_number)+Tlpx+Ths_prep+Ths_zero+
Ths_trail+Ths_exit)/(htotal*bpp/lane_number)
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
If we want to set the hardware OD to relay mode,
we have to set DISP_OD_CFG register rather than
OD_RELAYMODE; otherwise, the system will access
the wrong address.
Change-Id: Ifb9bb4caa63df906437d48b5d5326b6d04ea332a
Fixes: 7216436420 ("drm/mediatek: set mt8173 dithering function")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
When configured with CONFIG_PPC_EARLY_DEBUG_OPAL=y the kernel expects
the OPAL entry and base addresses to be passed in r8 and r9
respectively. Currently the wrapper does not attempt to restore these
values before entering the decompressed kernel which causes the kernel
to branch into whatever happens to be in r9 when doing a write to the
OPAL console in early boot.
This patch adds a platform_ops hook that can be used to branch into the
new kernel. The OPAL console driver patches this at runtime so that if
the console is used it will be restored just prior to entering the
kernel.
Fixes: 656ad58ef1 ("powerpc/boot: Add OPAL console to epapr wrappers")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Make sure mlx4_en_free_resources is called under the netdev state lock.
This is needed since RCU dereference of XDP prog should be protected.
Fixes: 326fe02d1e ("net/mlx4_en: protect ring->xdp_prog with rcu_read_lock")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reported-by: Sagi Grimberg <sagi@grimberg.me>
CC: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 7c6ae610a1, because l2tp_xmit_skb() never
returns NET_XMIT_CN, it ignores the return value of l2tp_xmit_core().
Cc: Gao Feng <gfree.wind@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For RT netlink, calcit() function should return the minimal size for
netlink dump message. This will make sure that dump message for every
network device can be stored.
Currently, rtnl_calcit() function doesn't account the size of header of
netlink message, this patch will fix it.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Knowing that:
#define TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN (0x1UL << 0)
#define TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE (0x5UL << 0)
and that 'bnxt_hwrm_tunnel_dst_port_alloc()' is only called with one of
these 2 constants, the TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE can not
trigger.
Replace the bit test that overlap by an equality test, just as in
'bnxt_hwrm_tunnel_dst_port_free()' above.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix kernel-doc warning in <linux/netdevice.h> (missing ':'):
..//include/linux/netdevice.h:1904: warning: No description found for parameter 'prio_tc_map[TC_BITMASK + 1]'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When dev_set_promiscuity failed in macvlan_open, it always invokes
dev_set_allmulti without checking if necessary.
Now check the IFF_ALLMULTI flag firstly before rollback the multicast
setting in the error handler.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix setting of SUPPORTED_FIBRE bit as it was not present in features
of KSZ8041.
Signed-off-by: Kirill Esipov <yesipov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A late issue discovered by Russell King while testing his setup on Juno.
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm/arm: hdlcd: fix plane base address update
one small powerplay fix and one regression fix for older PX systems and d3cold
* 'drm-fixes-4.9' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix power state when port pm is unavailable (v2)
drm/amdgpu: fix power state when port pm is unavailable
drm/amd/powerplay: avoid out of bounds access on array ps.
The commit 8dfbcc4351 ("[media] xc2028: avoid use after free") tried
to address the reported use-after-free by clearing the reference.
However, it's clearing the wrong pointer; it sets NULL to
priv->ctrl.fname, but it's anyway overwritten by the next line
memcpy(&priv->ctrl, p, sizeof(priv->ctrl)).
OTOH, the actual code accessing the freed string is the strcmp() call
with priv->fname:
if (!firmware_name[0] && p->fname &&
priv->fname && strcmp(p->fname, priv->fname))
free_firmware(priv);
where priv->fname points to the previous file name, and this was
already freed by kfree().
For fixing the bug properly, this patch does the following:
- Keep the copy of firmware file name in only priv->fname,
priv->ctrl.fname isn't changed;
- The allocation is done only when the firmware gets loaded;
- The kfree() is called in free_firmware() commonly
Fixes: commit 8dfbcc4351 ('[media] xc2028: avoid use after free')
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Stable Bugfixes:
- Hide array-bounds warning
Bugfixes:
- Keep a reference on lock states while checking
- Handle NFS4ERR_OLD_STATEID in nfs4_reclaim_open_state
- Don't call close if the open stateid has already been cleared
- Fix CLOSE rases with OPEN
- Fix a regression in DELEGRETURN
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Merge tag 'nfs-for-4.9-4' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"Most of these fix regressions or races, but there is one patch for
stable that Arnd sent me
Stable bugfix:
- Hide array-bounds warning
Bugfixes:
- Keep a reference on lock states while checking
- Handle NFS4ERR_OLD_STATEID in nfs4_reclaim_open_state
- Don't call close if the open stateid has already been cleared
- Fix CLOSE rases with OPEN
- Fix a regression in DELEGRETURN"
* tag 'nfs-for-4.9-4' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4.x: hide array-bounds warning
NFSv4.1: Keep a reference on lock states while checking
NFSv4.1: Handle NFS4ERR_OLD_STATEID in nfs4_reclaim_open_state
NFSv4: Don't call close if the open stateid has already been cleared
NFSv4: Fix CLOSE races with OPEN
NFSv4.1: Fix a regression in DELEGRETURN
Pull arch/tile bugfix from Chris Metcalf:
"This fixes a bug that causes reboots after 208 days of uptime :-)"
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: avoid using clocksource_cyc2ns with absolute cycle count
For large values of "mult" and long uptimes, the intermediate
result of "cycles * mult" can overflow 64 bits. For example,
the tile platform calls clocksource_cyc2ns with a 1.2 GHz clock;
we have mult = 853, and after 208.5 days, we overflow 64 bits.
Since clocksource_cyc2ns() is intended to be used for relative
cycle counts, not absolute cycle counts, performance is more
importance than accepting a wider range of cycle values. So,
just use mult_frac() directly in tile's sched_clock().
Commit 4cecf6d401 ("sched, x86: Avoid unnecessary overflow
in sched_clock") by Salman Qazi results in essentially the same
generated code for x86 as this change does for tile. In fact,
a follow-on change by Salman introduced mult_frac() and switched
to using it, so the C code was largely identical at that point too.
Peter Zijlstra then added mul_u64_u32_shr() and switched x86
to use it. This is, in principle, better; by optimizing the
64x64->64 multiplies to be 32x32->64 multiplies we can potentially
save some time. However, the compiler piplines the 64x64->64
multiplies pretty well, and the conditional branch in the generic
mul_u64_u32_shr() causes some bubbles in execution, with the
result that it's pretty much a wash. If tilegx provided its own
implementation of mul_u64_u32_shr() without the conditional branch,
we could potentially save 3 cycles, but that seems like small gain
for a fair amount of additional build scaffolding; no other platform
currently provides a mul_u64_u32_shr() override, and tile doesn't
currently have an <asm/div64.h> header to put the override in.
Additionally, gcc currently has an optimization bug that prevents
it from recognizing the opportunity to use a 32x32->64 multiply,
and so the result would be no better than the existing mult_frac()
until such time as the compiler is fixed.
For now, just using mult_frac() seems like the right answer.
Cc: stable@kernel.org [v3.4+]
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
When PCIe port PM is not enabled (system BIOS is pre-2015 or the
pcie_port_pm=off parameter is set), legacy ATPX PM should still be
marked as supported. Otherwise the GPU can fail to power on after
runtime suspend. This affected a Dell Inspiron 5548.
Ideally the BIOS date in the PCI core is lowered to 2013 (the first year
where hybrid graphics platforms using power resources was introduced),
but that seems more risky at this point and would not solve the
pcie_port_pm=off issue.
v2: agd: fix typo
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98505
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org> # 4.8+
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
When PCIe port PM is not enabled (system BIOS is pre-2015 or the
pcie_port_pm=off parameter is set), legacy ATPX PM should still be
marked as supported. Otherwise the GPU can fail to power on after
runtime suspend. This affected a Dell Inspiron 5548.
Ideally the BIOS date in the PCI core is lowered to 2013 (the first year
where hybrid graphics platforms using power resources was introduced),
but that seems more risky at this point and would not solve the
pcie_port_pm=off issue.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98505
Reported-and-tested-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org> # 4.8+
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
When user tried to read some fields like hysteresis from IIO sysfs on some
systems, it fails. The reason is that this field is a byte field and caller
of sensor_hub_get_feature() passes a buffer of 4 bytes. Here the function
sensor_hub_get_feature() copies the single byte from the report to the
caller buffer and returns "1" as the number of bytes copied. So caller
can use the return value.
But this is done by multiple callers, so if we just change the
sensor_hub_get_feature so that caller buffer is initialized with 0s
then we don't to change all functions.
Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.
[jkosina@suse.cz: fix up second usage of hid_hw_raw_request(), spotted by
0day build bot]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.
Use a spinlock to prevent concurrent accesses to the buffer.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull perf fixes from Ingo Molnar:
"Six fixes for bugs that were found via fuzzing, and a trivial
hw-enablement patch for AMD Family-17h CPU PMUs"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Allow only a single PMU/box within an events group
perf/x86/intel: Cure bogus unwind from PEBS entries
perf/x86: Restore TASK_SIZE check on frame pointer
perf/core: Fix address filter parser
perf/x86: Add perf support for AMD family-17h processors
perf/x86/uncore: Fix crash by removing bogus event_list[] handling for SNB client uncore IMC
perf/core: Do not set cpuctx->cgrp for unscheduled cgroups
Sending frames in CCK rates on HT can cause performance problems.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Use RTS/CTS protection for TXOP on all rates modes as default and
disable CCK rates (this cause performance problems).
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Change default to RTS/CTS protection. This has a cost of transmitting
one more control frame (RTS) however protect us from traffic from
hidden node.
On station mode will use CTS-to-self if AP will configure that
for the network.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Those TX_SW_CFG1 values are used in vendor driver.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Initialize AUTO_RSP_CFG register to similar value as vendor driver does.
Do not set BAC_ACK_POLICY based on short preamble setting, those are
unrelated.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We already initlized WPDMA_GLO_CFG_WP_DMA_BURST_SIZE to 3 on
rt2800_init_registers() for USB devices. For PCI devices we will use
HW default setting, which is 2, so patch does not change behaviour
on PCI devices.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We should not reset USB_DMA_CFG on rt2800usb_init_registers() as this
function is called indirectly from rt2800_enable_radio(). If we
do so, we wipe out USB_DMA_CFG settings from rt2800usb_enable_radio().
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We should only set IEEE80211_HT_MCS_TX_RX_DIF when TX and RX MCS sets
are not equal, i.e. when number of tx streams is different than
number of RX streams.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Firmware doesn't update beacon/Probe Response vendor IEs correctly when
bss is down, so we move brcmf_config_ap_mgmt_ie after BSS up. And host
driver should clear IEs when AP stopped so that the IEs in host side will
be synced with in firmware side.
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In device removal routine, usage of "#ifdef CONFIG_RT2X00_LIB_USB"
will not cover the case when it is configured as module. This will
omit the entire if-block which does cleanup of URBs and cancellation
of pending work. Changing the #ifdef to #if IS_ENABLED() to fix it.
Signed-off-by: Vishal Thanki <vishalthanki@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Since commit 6f3b911d5f ("can: bcm: add support for CAN FD frames") the
CAN broadcast manager supports CAN and CAN FD data frames.
As these data frames are embedded in struct can[fd]_frames which have a
different length the access to the provided array of CAN frames became
dependend of op->cfsiz. By using a struct canfd_frame pointer for the array of
CAN frames the new offset calculation based on op->cfsiz was accidently applied
to CAN FD frame element lengths.
This fix makes the pointer to the arrays of the different CAN frame types a
void pointer so that the offset calculation in bytes accesses the correct CAN
frame elements.
Reference: http://marc.info/?l=linux-netdev&m=147980658909653
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
ath.git patches for 4.10. Major changes:
ath9k
* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
latency and fix bufferbloat
This reverts commit 4dd1837d75.
Moving the exports for assembly code into the assembly files breaks
KSYM trimming, but also breaks modversions.
While fixing the KSYM trimming is trivial, fixing modversions brings
us to a technically worse position that we had prior to the above
change:
- We end up with the prototype definitions divorsed from everything
else, which means that adding or removing assembly level ksyms
become more fragile:
* if adding a new assembly ksyms export, a missed prototype in
asm-prototypes.h results in a successful build if no module in
the selected configuration makes use of the symbol.
* when removing a ksyms export, asm-prototypes.h will get forgotten,
with armksyms.c, you'll get a build error if you forget to touch
the file.
- We end up with the same amount of include files and prototypes,
they're just in a header file instead of a .c file with their
exports.
As for lines of code, we don't get much of a size reduction:
(original commit)
47 files changed, 131 insertions(+), 208 deletions(-)
(fix for ksyms trimming)
7 files changed, 18 insertions(+), 5 deletions(-)
(two fixes for modversions)
1 file changed, 34 insertions(+)
3 files changed, 7 insertions(+), 2 deletions(-)
which results in a net total of only 25 lines deleted.
As there does not seem to be much benefit from this change of approach,
revert the change.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Pull crypto fixes from Herbert Xu:
"The last push broke algif_hash for all shash implementations, so this
is a follow-up to fix that.
This also fixes a problem in the crypto scatterwalk that triggers a
BUG_ON with certain debugging options due to the new vmalloced-stack
code"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: scatterwalk - Remove unnecessary aliasing check in map_and_copy
crypto: algif_hash - Fix result clobbering in recvmsg
Pull thermal management fix from Zhang Rui:
"We only have one urgent fix this time.
Commit 3105f234e0 ("thermal/powerclamp: correct cpu support check"),
which is shipped in 4.9-rc3, fixed a problem introduced by commit
b721ca0d19 ("thermal/powerclamp: remove cpu whitelist").
But unfortunately, it broke intel_powerclamp driver module auto-
loading at the same time. Thus we need this change to add back module
auto-loading for 4.9"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal/powerclamp: add back module device table
The hci_get_route() API is used to look up local HCI devices, however
so far it has been incapable of dealing with anything else than the
public address of HCI devices. This completely breaks with LE-only HCI
devices that do not come with a public address, but use a static
random address instead.
This patch exteds the hci_get_route() API with a src_type parameter
that's used for comparing with the right address of each HCI device.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Two small fixes. One prevents timeouts on mpt3sas when trying to use
the secure erase protocol which causes the erase protocol to be
aborted. The second is a regression in a prior fix which causes all
commands to abort during PCI extended error recovery, which is
incorrect because PCI EEH is independent from what's happening on the
FC transport.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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 small fixes.
One prevents timeouts on mpt3sas when trying to use the secure erase
protocol which causes the erase protocol to be aborted. The second is
a regression in a prior fix which causes all commands to abort during
PCI extended error recovery, which is incorrect because PCI EEH is
independent from what's happening on the FC transport"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: do not abort all commands in the adapter during EEH recovery
scsi: mpt3sas: Fix secure erase premature termination
configuration and a bad frequency calculation. The other two are fixes for
passing the wrong pointer in drivers recently converted to clk_hw style
registration.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of driver fixes.
The sunxi fixes are for an incorrect clk tree configuration and a bad
frequency calculation. The other two are fixes for passing the wrong
pointer in drivers recently converted to clk_hw style registration"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: efm32gg: Pass correct type to hw provider registration
clk: berlin: Pass correct type to hw provider registration
clk: sunxi: Fix M factor computation for APB1
clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
A correct bugfix introduced a harmless warning that shows up with gcc-7:
fs/nfs/callback.c: In function 'nfs_callback_up':
fs/nfs/callback.c:214:14: error: array subscript is outside array bounds [-Werror=array-bounds]
What happens here is that the 'minorversion == 0' check tells the
compiler that we assume minorversion can be something other than 0,
but when CONFIG_NFS_V4_1 is disabled that would be invalid and
result in an out-of-bounds access.
The added check for IS_ENABLED(CONFIG_NFS_V4_1) tells gcc that this
really can't happen, which makes the code slightly smaller and also
avoids the warning.
The bugfix that introduced the warning is marked for stable backports,
we want this one backported to the same releases.
Fixes: 98b0f80c23 ("NFSv4.x: Fix a refcount leak in nfs_callback_up_net")
Cc: stable@vger.kernel.org # v3.7+
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Pull scheduler fixes from Ingo Molnar:
"Two fixes for autogroup scheduling, for races when turning the feature
on/off via /proc/sys/kernel/sched_autogroup_enabled"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/autogroup: Do not use autogroup->tg in zombie threads
sched/autogroup: Fix autogroup_move_group() to never skip sched_move_task()
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- two fixes to make (very) old Intel CPUs boot reliably
- fix the intel-mid driver and rename it
- two KASAN false positive fixes
- an FPU fix
- two sysfb fixes
- two build fixes related to new toolchain versions"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/intel-mid: Rename platform_wdt to platform_mrfld_wdt
x86/build: Build compressed x86 kernels as PIE when !CONFIG_RELOCATABLE as well
x86/platform/intel-mid: Register watchdog device after SCU
x86/fpu: Fix invalid FPU ptrace state after execve()
x86/boot: Fail the boot if !M486 and CPUID is missing
x86/traps: Ignore high word of regs->cs in early_fixup_exception()
x86/dumpstack: Prevent KASAN false positive warnings
x86/unwind: Prevent KASAN false positive warnings in guess unwinder
x86/boot: Avoid warning for zero-filling .bss
x86/sysfb: Fix lfb_size calculation
x86/sysfb: Add support for 64bit EFI lfb_base
Andre Noll reported panics after my recent fix (commit 34fad54c25
"net: __skb_flow_dissect() must cap its return value")
After some more headaches, Alexander root caused the problem to
init_default_flow_dissectors() being called too late, in case
a network driver like IGB is not a module and receives DHCP message
very early.
Fix is to call init_default_flow_dissectors() much earlier,
as it is a core infrastructure and does not depend on another
kernel service.
Fixes: 06635a35d1 ("flow_dissect: use programable dissector in skb_flow_dissect and friends")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andre Noll <maan@tuebingen.mpg.de>
Diagnosed-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All conflicts were simple overlapping changes except perhaps
for the Thunder driver.
That driver has a change_mtu method explicitly for sending
a message to the hardware. If that fails it returns an
error.
Normally a driver doesn't need an ndo_change_mtu method becuase those
are usually just range changes, which are now handled generically.
But since this extra operation is needed in the Thunder driver, it has
to stay.
However, if the message send fails we have to restore the original
MTU before the change because the entire call chain expects that if
an error is thrown by ndo_change_mtu then the MTU did not change.
Therefore code is added to nicvf_change_mtu to remember the original
MTU, and to restore it upon nicvf_update_hw_max_frs() failue.
Signed-off-by: David S. Miller <davem@davemloft.net>
