| Age | Commit message (Collapse) | Author |
|---|
|
rdma_counter_init() may fail for a device. In such case while calculating
total sum, ignore NULL hstats.
This fixes below observed call trace.
BUG: kernel NULL pointer dereference, address: 00000000000000a0
PGD 8000001009b30067 P4D 8000001009b30067 PUD 10549c9067 PMD 0
Oops: 0000 [#1] SMP PTI
CPU: 55 PID: 20887 Comm: cat Kdump: loaded Not tainted 5.2.0-rc6-jdc+ #13
RIP: 0010:rdma_counter_get_hwstat_value+0xf2/0x150 [ib_core]
Call Trace:
show_hw_stats+0x5e/0x130 [ib_core]
dev_attr_show+0x15/0x50
sysfs_kf_seq_show+0xc6/0x1a0
seq_read+0x132/0x370
vfs_read+0x89/0x140
ksys_read+0x5c/0xd0
do_syscall_64+0x5a/0x240
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fixes: f34a55e497e8 ("RDMA/core: Get sum value of all counters when perform a sysfs stat read")
Link: https://lore.kernel.org/r/20190723065733.4899-10-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
The device requires that memory registration work requests that update the
address translation table of a MR will be fenced if posted together. This
scenario can happen when address ranges are invalidated by the mmu in
separate concurrent calls to the invalidation callback.
We prefer to block concurrent address updates for a single MR over fencing
since making the decision if a WQE needs fencing will be more expensive
and fencing all WQEs is a too radical choice.
Further, it isn't clear that this code can even run safely concurrently,
so a lock is a safer choice.
Fixes: b4cfe447d47b ("IB/mlx5: Implement on demand paging by adding support for MMU notifiers")
Link: https://lore.kernel.org/r/20190723065733.4899-8-leon@kernel.org
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
While reviewing rwsem down_slowpath, Will noticed ldsem had a copy of
a bug we just found for rwsem.
X = 0;
CPU0 CPU1
rwsem_down_read()
for (;;) {
set_current_state(TASK_UNINTERRUPTIBLE);
X = 1;
rwsem_up_write();
rwsem_mark_wake()
atomic_long_add(adjustment, &sem->count);
smp_store_release(&waiter->task, NULL);
if (!waiter.task)
break;
...
}
r = X;
Allows 'r == 0'.
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 4898e640caf0 ("tty: Add timed, writer-prioritized rw semaphore")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
|
That function now returns ERR_PTR instead of NULL if "hpd-gpio" is not
present in device-tree. The offending patch missed to adapt the Tegra's
DRM driver for the API change.
Fixes: 025bf37725f1 ("gpio: Fix return value mismatch of function gpiod_get_from_of_node()")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
If CONFIG_PM is not set, build warnings:
drivers/dma/tegra210-adma.c:747:12: warning: tegra_adma_runtime_resume defined but not used [-Wunused-function]
static int tegra_adma_runtime_resume(struct device *dev)
drivers/dma/tegra210-adma.c:715:12: warning: tegra_adma_runtime_suspend defined but not used [-Wunused-function]
static int tegra_adma_runtime_suspend(struct device *dev)
Mark the two function as __maybe_unused.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Fixes: 3145d73e69ba ("dmaengine: tegra210-adma: remove PM_CLK dependency")
Fixes: f46b195799b5 ("dmaengine: tegra-adma: Add support for Tegra210 ADMA")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20190709083258.57112-1-yuehaibing@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
|
|
Do the necessary house-keeping if the allocated memory wont be used
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Link: https://lore.kernel.org/r/20190705081303.14170-1-jorge.ramirez-ortiz@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The base value in do_div() called by hpet_time_div() is truncated from
unsigned long to uint32_t, resulting in a divide-by-zero exception.
UBSAN: Undefined behaviour in ../drivers/char/hpet.c:572:2
division by zero
CPU: 1 PID: 23682 Comm: syz-executor.3 Not tainted 4.4.184.x86_64+ #4
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
0000000000000000 b573382df1853d00 ffff8800a3287b98 ffffffff81ad7561
ffff8800a3287c00 ffffffff838b35b0 ffffffff838b3860 ffff8800a3287c20
0000000000000000 ffff8800a3287bb0 ffffffff81b8f25e ffffffff838b35a0
Call Trace:
[<ffffffff81ad7561>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81ad7561>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
[<ffffffff81b8f25e>] ubsan_epilogue+0x12/0x8d lib/ubsan.c:166
[<ffffffff81b900cb>] __ubsan_handle_divrem_overflow+0x282/0x2c8 lib/ubsan.c:262
[<ffffffff823560dd>] hpet_time_div drivers/char/hpet.c:572 [inline]
[<ffffffff823560dd>] hpet_ioctl_common drivers/char/hpet.c:663 [inline]
[<ffffffff823560dd>] hpet_ioctl_common.cold+0xa8/0xad drivers/char/hpet.c:577
[<ffffffff81e63d56>] hpet_ioctl+0xc6/0x180 drivers/char/hpet.c:676
[<ffffffff81711590>] vfs_ioctl fs/ioctl.c:43 [inline]
[<ffffffff81711590>] file_ioctl fs/ioctl.c:470 [inline]
[<ffffffff81711590>] do_vfs_ioctl+0x6e0/0xf70 fs/ioctl.c:605
[<ffffffff81711eb4>] SYSC_ioctl fs/ioctl.c:622 [inline]
[<ffffffff81711eb4>] SyS_ioctl+0x94/0xc0 fs/ioctl.c:613
[<ffffffff82846003>] tracesys_phase2+0x90/0x95
The main C reproducer autogenerated by syzkaller,
syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
memcpy((void*)0x20000100, "/dev/hpet\000", 10);
syscall(__NR_openat, 0xffffffffffffff9c, 0x20000100, 0, 0);
syscall(__NR_ioctl, r[0], 0x40086806, 0x40000000000000);
Fix it by using div64_ul().
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Zhang HongJun <zhanghongjun2@huawei.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190711132757.130092-1-wangkefeng.wang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
misc/eeprom/{at24,at25,eeprom_93xx46} drivers all register their
corresponding devices in the nvmem framework in compat mode which requires
nvmem sysfs interface to be present. The latter, however, has been split
out from nvmem under a separate Kconfig in commit ae0c2d725512 ("nvmem:
core: add NVMEM_SYSFS Kconfig"). As a result, probing certain I2C-attached
EEPROMs now fails with
at24: probe of 0-0050 failed with error -38
because of a stub implementation of nvmem_sysfs_setup_compat()
in drivers/nvmem/nvmem.h. Update the nvmem dependency for these drivers
so they could load again:
at24 0-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
Cc: Adrian Bunk <bunk@kernel.org>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Link: https://lore.kernel.org/r/20190716111236.27803-1-asolokha@kb.kras.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Generally, declaring a platform device as a static variable is
a bad idea and can cause all kinds of problems, in particular
with the DMA configuration and lifetime rules.
A specific problem we hit here is from a bug in clang that warns
about certain (otherwise valid) macros when used in static variables:
drivers/misc/mic/card/mic_x100.c:285:27: warning: shift count >= width of type [-Wshift-count-overflow]
static u64 mic_dma_mask = DMA_BIT_MASK(64);
^~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:141:54: note: expanded from macro 'DMA_BIT_MASK'
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
^ ~~~
A slightly better way here is to create the platform device dynamically
and set the dma mask in the probe function.
This avoids the warning and some other problems, but is still not ideal
because the device creation should really be separated from the driver,
and the fact that the device has no parent means we have to force
the dma mask rather than having it set up from the bus that the device
is actually on.
Fixes: dd8d8d44df64 ("misc: mic: MIC card driver specific changes to enable SCIF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190712092426.872625-1-arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This is a driver, do not call "raw" sysfs functions, instead call driver
core ones. Specifically convert the use of sysfs_create_files() and
sysfs_remove_files() to use device_add_groups() and
device_remove_groups()
Cc: Wu Hao <hao.wu@intel.com>
Cc: Alan Tull <atull@kernel.org>
Cc: Moritz Fischer <mdf@kernel.org>
Cc: linux-fpga@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190704055645.GA15471@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Not really harmful not to, but also not harm in grabbing the lock. And
this shuts up a new WARNING I introduced in commit ddde3c18b700 ("vt:
More locking checks").
Reported-by: Jens Remus <jremus@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Martin Hostettler <textshell@uchuujin.de>
Cc: Adam Borowski <kilobyte@angband.pl>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Fixes: ddde3c18b700 ("vt: More locking checks")
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Tested-by: Jens Remus <jremus@linux.ibm.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/20190718080903.22622-1-daniel.vetter@ffwll.ch
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
In pp_release(), there is an if statement on line 730 to check whether
pp->pdev is NULL:
else if ((pp->flags & PP_CLAIMED) && pp->pdev && ...)
When pp->pdev is NULL, it is used on line 743:
info = &pp->pdev->port->ieee1284;
and on line 748:
parport_release(pp->pdev);
Thus, a possible null-pointer dereference may occur.
To fix this bug, pp->pdev is checked on line 740.
This bug is found by a static analysis tool STCheck written by us.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Link: https://lore.kernel.org/r/20190724090426.1401-1-baijiaju1990@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
syzbot found that a thread can stall for minutes inside
ion_system_heap_allocate() after that thread was killed by SIGKILL [1].
Let's check for SIGKILL before doing memory allocation.
[1] https://syzkaller.appspot.com/bug?id=a0e3436829698d5824231251fad9d8e998f94f5e
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@vger.kernel.org>
Reported-by: syzbot <syzbot+8ab2d0f39fb79fe6ca40@syzkaller.appspotmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://lore.kernel.org/r/d088f188-5f32-d8fc-b9a0-0b404f7501cc@I-love.SAKURA.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The MSU configuration registers may contain buffer address/size set by
the BIOS or an external hardware debugger, which may want to take over
tracing from the driver when the driver is not actively tracing.
Preserve these settings when not actively tracing.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-6-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
We already prevent freeing buffers via sysfs interface in case there are
existing users or if trace is active. Treat the existence of locked windows
similarly and return -EBUSY on attempts to free the buffer. When the last
window is unlocked, the freeing will succeed.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Currently, the window size is limited to the maximum number of sg entries
in one table. This is because the code addresses individual blocks within
the window by their numeric index. In reality, though, the blocks most
often are iterated through sequentially. By rewriting the logic to use sg
pointers instead of block indices we loose the necessity to dereference
them directly and gain the ability to use multiple chained tables if
necessary.
Get rid of the limitation by replacing index-based block accesses with
sequential block accesses.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This patch adds an example MSU buffer "sink", which consumes trace
data from MSC buffers.
Functionally, it acts similarly to "multi" mode with automatic window
switching.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-3-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Introduces a concept of external buffers, which is a mechanism for creating
trace sinks that would receive trace data from MSC buffers and transfer it
elsewhere.
A external buffer can implement its own window allocation/deallocation if
it has to. It must provide a callback that's used to notify it when a
window fills up, so that it can then start a DMA transaction from that
window 'elsewhere'. This window remains in a 'locked' state and won't be
used for storing new trace data until the buffer 'unlocks' it with a
provided API call, at which point the window can be used again for storing
trace data.
This relies on a functional "last block" interrupt, so not all versions of
Trace Hub can use this feature, which does not reflect on existing users.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The Netx ARM machine was deleted from the kernel. This driver
had no users and has to go.
Cc: Robert Schwebel <r.schwebel@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190722065146.4844-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
A second regression was found in the immediate data transfer (IDT)
support which was added to 5.2 kernel
IDT is used to transfer small amounts of data (up to 8 bytes) in the
field normally used for data dma address, thus avoiding dma mapping.
If the data was not already dma mapped, then IDT support assumed data was
in urb->transfer_buffer, and did not take into accound that even
small amounts of data (8 bytes) can be in a scatterlist instead.
This caused a NULL pointer dereference when sg_dma_len() was used
with non-dma mapped data.
Solve this by not using IDT if scatter gather buffer list is used.
Fixes: 33e39350ebd2 ("usb: xhci: add Immediate Data Transfer support")
Cc: <stable@vger.kernel.org> # v5.2
Reported-by: Maik Stohn <maik.stohn@seal-one.com>
Tested-by: Maik Stohn <maik.stohn@seal-one.com>
CC: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/1564044861-1445-1-git-send-email-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This is a partial revert of 73d31def1aab "usb: usb251xb: Create a ports
field collector method", which broke a existing devicetree
(arch/arm64/boot/dts/freescale/imx8mq.dtsi).
There is no reason why the swap-dx-lanes property should not apply to
the upstream port. The reason given in the breaking commit was that it's
inconsitent with respect to other port properties, but in fact it is not.
All other properties which only apply to the downstream ports explicitly
reject port 0, so there is pretty strong precedence that the driver
referred to the upstream port as port 0. So there is no inconsistency in
this property at all, other than the swapping being also applicable to
the upstream port.
CC: stable@vger.kernel.org #5.2
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20190719084407.28041-3-l.stach@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This property isn't needed and not yet used anywhere. The swap-dx-lanes
property is perfectly fine for doing the swap on the upstream port
lanes.
CC: stable@vger.kernel.org #5.2
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20190719084407.28041-2-l.stach@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
* pm-cpufreq:
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
|
|
syzboot reported that
https://syzkaller.appspot.com/bug?extid=fd2bd7df88c606eea4ef
There is not consitency parameter in cluste_id_get/put calling.
In case of getting the id with result is failure, the wusbhc->cluster_id
will not be updated and this can not be used for wusb_cluster_id_put().
Tested report
https://groups.google.com/d/msg/syzkaller-bugs/0znZopp3-9k/oxOrhLkLEgAJ
Reproduce and gdb got the details:
139 addr = wusb_cluster_id_get();
(gdb) n
140 if (addr == 0)
(gdb) print addr
$1 = 254 '\376'
(gdb) n
142 result = __hwahc_set_cluster_id(hwahc, addr);
(gdb) print result
$2 = -71
(gdb) break wusb_cluster_id_put
Breakpoint 3 at 0xffffffff836e3f20: file drivers/usb/wusbcore/wusbhc.c, line 384.
(gdb) s
Thread 2 hit Breakpoint 3, wusb_cluster_id_put (id=0 '\000') at drivers/usb/wusbcore/wusbhc.c:384
384 id = 0xff - id;
(gdb) n
385 BUG_ON(id >= CLUSTER_IDS);
(gdb) print id
$3 = 255 '\377'
Reported-by: syzbot+fd2bd7df88c606eea4ef@syzkaller.appspotmail.com
Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190724020601.15257-1-tranmanphong@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The devm_memremap() function doesn't return NULL, it returns error
pointers.
Fixes: b0310c2f09bb ("USB: use genalloc for USB HCs with local memory")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20190607135709.GC16718@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This patch fixes an issue that the following error happens on
swiotlb environment:
xhci-hcd ee000000.usb: swiotlb buffer is full (sz: 524288 bytes), total 32768 (slots), used 1338 (slots)
On the kernel v5.1, block settings of a usb-storage with SuperSpeed
were the following so that the block layer will allocate buffers
up to 64 KiB, and then the issue didn't happen.
max_segment_size = 65536
max_hw_sectors_kb = 1024
After the commit 09324d32d2a0 ("block: force an unlimited segment
size on queues with a virt boundary") is applied, the block settings
are the following. So, the block layer will allocate buffers up to
1024 KiB, and then the issue happens:
max_segment_size = 4294967295
max_hw_sectors_kb = 1024
To fix the issue, the usb-storage driver checks the maximum size of
a mapping for the device and then adjusts the max_hw_sectors_kb
if required. After this patch is applied, the block settings will
be the following, and then the issue doesn't happen.
max_segment_size = 4294967295
max_hw_sectors_kb = 256
Fixes: 09324d32d2a0 ("block: force an unlimited segment size on queues with a virt boundary")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/1563793105-20597-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
usb_amd_find_chipset_info() is used for chipset detection for
several quirks. It is strange that its return value indicates
the need for the PLL quirk, which means it is often ignored.
This patch adds a function specifically for checking the PLL
quirk like the other ones. Additionally, rename probe_result to
something more appropriate.
Signed-off-by: Ryan Kennedy <ryan5544@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20190704153529.9429-3-ryan5544@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The AMD PLL USB quirk is incorrectly enabled on newer Ryzen
chipsets. The logic in usb_amd_find_chipset_info currently checks
for unaffected chipsets rather than affected ones. This broke
once a new chipset was added in e788787ef. It makes more sense
to reverse the logic so it won't need to be updated as new
chipsets are added. Note that the core of the workaround in
usb_amd_quirk_pll does correctly check the chipset.
Signed-off-by: Ryan Kennedy <ryan5544@gmail.com>
Fixes: e788787ef4f9 ("usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20190704153529.9429-2-ryan5544@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The 2016 kabylake HP Spectre X360 (model number 13-w013dx) works much better
with psmouse.synaptics_intertouch=1 kernel parameter, so let's enable RMI4
mode automatically.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204115
Reported-by: Nate Graham <pointedstick@zoho.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
Commit c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor
interface") breaks GPIO handling. In several places, checks to only set
a GPIO if it was configured ended up backwards.
I have tested this fix. The fixed driver works with a ili9486
display connected to a raspberry pi via SPI.
Fixes: c440eee1a7a1d ("Staging: fbtft: Switch to the gpio descriptor interface")
Tested-by: Jan Sebastian Götte <linux@jaseg.net>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Jan Sebastian Götte <linux@jaseg.net>
Link: https://lore.kernel.org/r/75ada52f-afa1-08bc-d0ce-966fc1110e70@jaseg.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20190723124649.24728-1-hslester96@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an
ERRPTR which we use in error handling.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20190722172616.3982-3-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an
ERRPTR which we use in error handling.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20190722172616.3982-2-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Commit e99e88a9d2b06 ("treewide: setup_timer() -> timer_setup()") has
updated the parameters of 'poll_for_irq()' but not the comment above the
function.
Update the comment and fix a typo.
s/visronic/visornic/
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-By: Enrico Weigelt <info@metux.net>
Link: https://lore.kernel.org/r/20190721170824.3412-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Before deinitializing the host interface, the workqueue should be flushed
to handle any pending deferred work
Signed-off-by: Adham Abozaeid <adham.abozaeid@microchip.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190722213837.21952-1-adham.abozaeid@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
In sysfs_show() case-branches ATTR_KERNEL_HIB_PAGE_TABLE_SIZE and
ATTR_KERNEL_HIB_SIMPLE_PAGE_TABLE_SIZE do the same. It looks like
copy-paste mistake.
Signed-off-by: Ivan Bornyakov <brnkv.i1@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190710204518.16814-1-brnkv.i1@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Typically gpiod_set_value calls would assert the reset line and
then release it using the symantics of:
gpiod_set_value(par->gpio.reset, 0);
... delay
gpiod_set_value(par->gpio.reset, 1);
And the gpio binding would specify the polarity.
Prior to conversion to gpiod calls the polarity in the DT
was ignored and assumed to be active low. Fix it so that
DT polarity is respected.
Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Jan Sebastian Götte <linux@jaseg.net>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1563236677-5045-3-git-send-email-preid@electromag.com.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Conversion to use gpio descriptors broke all gpio lookups as
devm_gpiod_get_index was converted to use dev->driver->name for
the gpio name lookup. Fix this by using the name param. In
addition gpiod_get post-fixes the -gpios to the name so that
shouldn't be included in the call. However this then breaks the
of_find_property call to see if the gpio entry exists as all
fbtft treats all gpios as optional. So use devm_gpiod_get_index_optional
instead which achieves the same thing and is simpler.
Nishad confirmed the changes where only ever compile tested.
Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Jan Sebastian Götte <linux@jaseg.net>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1563236677-5045-2-git-send-email-preid@electromag.com.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The memory allocated for the stats array may contain arbitrary data.
Fixes: e4f9ba642f0b ("net: phy: mscc: add support for VSC8514 PHY.")
Fixes: 00d70d8e0e78 ("net: phy: mscc: add support for VSC8574 PHY")
Fixes: a5afc1678044 ("net: phy: mscc: add support for VSC8584 PHY")
Fixes: f76178dc5218 ("net: phy: mscc: add ethtool statistics counters")
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
SFP modules connected using the SGMII interface have their own PHYs which
are handled by the struct phylink's phydev field. On the other hand, for
the modules connected using 1000Base-X interface that field is not set.
Since commit ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network
devices and sfp cages") phylink_start() ends up setting the phydev field
using the sfp-bus infrastructure, which eventually calls phy_start() on it,
and then calling phy_start() again on the same phydev from phylink_start()
itself. Similar call sequence holds for phylink_stop(), only in the reverse
order. This results in WARNs during network interface bringup and shutdown
when a copper SFP module is connected, as phy_start() and phy_stop() are
called twice in a row for the same phy_device:
% ip link set up dev eth0
------------[ cut here ]------------
called from state UP
WARNING: CPU: 1 PID: 155 at drivers/net/phy/phy.c:895 phy_start+0x74/0xc0
Modules linked in:
CPU: 1 PID: 155 Comm: backend Not tainted 5.2.0+ #1
NIP: c0227bf0 LR: c0227bf0 CTR: c004d224
REGS: df547720 TRAP: 0700 Not tainted (5.2.0+)
MSR: 00029000 <CE,EE,ME> CR: 24002822 XER: 00000000
GPR00: c0227bf0 df5477d8 df5d7080 00000014 df9d2370 df9d5ac4 1f4eb000 00000001
GPR08: c061fe58 00000000 00000000 df5477d8 0000003c 100c8768 00000000 00000000
GPR16: df486a00 c046f1c8 c046eea0 00000000 c046e904 c0239604 db68449c 00000000
GPR24: e9083204 00000000 00000001 db684460 e9083404 00000000 db6dce00 db6dcc00
NIP [c0227bf0] phy_start+0x74/0xc0
LR [c0227bf0] phy_start+0x74/0xc0
Call Trace:
[df5477d8] [c0227bf0] phy_start+0x74/0xc0 (unreliable)
[df5477e8] [c023cad0] startup_gfar+0x398/0x3f4
[df547828] [c023cf08] gfar_enet_open+0x364/0x374
[df547898] [c029d870] __dev_open+0xe4/0x140
[df5478c8] [c029db70] __dev_change_flags+0xf0/0x188
[df5478f8] [c029dc28] dev_change_flags+0x20/0x54
[df547918] [c02ae304] do_setlink+0x310/0x818
[df547a08] [c02b1eb8] __rtnl_newlink+0x384/0x6b0
[df547c28] [c02b222c] rtnl_newlink+0x48/0x68
[df547c48] [c02ad7c8] rtnetlink_rcv_msg+0x240/0x27c
[df547c98] [c02cc068] netlink_rcv_skb+0x8c/0xf0
[df547cd8] [c02cba3c] netlink_unicast+0x114/0x19c
[df547d08] [c02cbd74] netlink_sendmsg+0x2b0/0x2c0
[df547d58] [c027b668] sock_sendmsg_nosec+0x20/0x40
[df547d68] [c027d080] ___sys_sendmsg+0x17c/0x1dc
[df547e98] [c027df7c] __sys_sendmsg+0x68/0x84
[df547ef8] [c027e430] sys_socketcall+0x1a0/0x204
[df547f38] [c000d1d8] ret_from_syscall+0x0/0x38
--- interrupt: c01 at 0xfd4e030
LR = 0xfd4e010
Instruction dump:
813f0188 38800000 2b890005 419d0014 3d40c046 5529103a 394aa208 7c8a482e
3c60c046 3863a1b8 4cc63182 4be009a1 <0fe00000> 48000030 3c60c046 3863a1d0
---[ end trace d4c095aeaf6ea998 ]---
and
% ip link set down dev eth0
------------[ cut here ]------------
called from state HALTED
WARNING: CPU: 1 PID: 184 at drivers/net/phy/phy.c:858 phy_stop+0x3c/0x88
<...>
Call Trace:
[df581788] [c0228450] phy_stop+0x3c/0x88 (unreliable)
[df581798] [c022d548] sfp_sm_phy_detach+0x1c/0x44
[df5817a8] [c022e8cc] sfp_sm_event+0x4b0/0x87c
[df581848] [c022f04c] sfp_upstream_stop+0x34/0x44
[df581858] [c0225608] phylink_stop+0x7c/0xe4
[df581868] [c023c57c] stop_gfar+0x7c/0x94
[df581888] [c023c5b8] gfar_close+0x24/0x94
[df5818a8] [c0298688] __dev_close_many+0xdc/0xf8
[df5818c8] [c029db58] __dev_change_flags+0xd8/0x188
[df5818f8] [c029dc28] dev_change_flags+0x20/0x54
[df581918] [c02ae304] do_setlink+0x310/0x818
[df581a08] [c02b1eb8] __rtnl_newlink+0x384/0x6b0
[df581c28] [c02b222c] rtnl_newlink+0x48/0x68
[df581c48] [c02ad7c8] rtnetlink_rcv_msg+0x240/0x27c
[df581c98] [c02cc068] netlink_rcv_skb+0x8c/0xf0
[df581cd8] [c02cba3c] netlink_unicast+0x114/0x19c
[df581d08] [c02cbd74] netlink_sendmsg+0x2b0/0x2c0
[df581d58] [c027b668] sock_sendmsg_nosec+0x20/0x40
[df581d68] [c027d080] ___sys_sendmsg+0x17c/0x1dc
[df581e98] [c027df7c] __sys_sendmsg+0x68/0x84
[df581ef8] [c027e430] sys_socketcall+0x1a0/0x204
[df581f38] [c000d1d8] ret_from_syscall+0x0/0x38
<...>
---[ end trace d4c095aeaf6ea999 ]---
SFP modules with the 1000Base-X interface are not affected.
Place explicit calls to phy_start() and phy_stop() before enabling or after
disabling an attached SFP module, where phydev is not yet set (or is
already unset), so they will be made only from the inside of sfp-bus, if
needed.
Fixes: 217962615662 ("net: phy: warn if phy_start is called from invalid state")
Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Make alt_pr_unregister function void, since it always returns 0,
and nothing would act on the value anyways.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
|
|
Fix the following checkpatch warning:
WARNING: function definition argument 'struct altera_cvp_conf *'
Signed-off-by: Carlos A Petry <capetry.dev@gmail.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
|
|
ret at line 112 of ipmb_dev_int.c is uninitialized which
results in a warning during build regressions.
This warning was found by build regression/improvement
testing for v5.3-rc1.
Reported-by: build regression/improvement testing for v5.3-rc1.
Fixes: 51bd6f291583 ("Add support for IPMB driver")
Signed-off-by: Asmaa Mnebhi <Asmaa@mellanox.com>
Message-Id: <571dbb67cf58411d567953d9fb3739eb4789238b.1563996586.git.Asmaa@mellanox.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
Any dma map underlying the MR should only be freed once the MR is fenced
at the hardware.
As of the above we first destroy the MKEY and just after that can safely
call to dma_unmap_single().
Link: https://lore.kernel.org/r/20190723065733.4899-6-leon@kernel.org
Cc: <stable@vger.kernel.org> # 4.3
Fixes: 8a187ee52b04 ("IB/mlx5: Support the new memory registration API")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
Fix unreg_umr to move the MR to a kernel owned PD (i.e. the UMR PD) which
can't be accessed by userspace.
This ensures that nothing can continue to access the MR once it has been
placed in the kernels cache for reuse.
MRs in the cache continue to have their HW state, including DMA tables,
present. Even though the MR has been invalidated, changing the PD provides
an additional layer of protection against use of the MR.
Link: https://lore.kernel.org/r/20190723065733.4899-5-leon@kernel.org
Cc: <stable@vger.kernel.org> # 3.10
Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
Use a direct firmware command to destroy the mkey in case the unreg UMR
operation has failed.
This prevents a case that a mkey will leak out from the cache post a
failure to be destroyed by a UMR WR.
In case the MR cache limit didn't reach a call to add another entry to the
cache instead of the destroyed one is issued.
In addition, replaced a warn message to WARN_ON() as this flow is fatal
and can't happen unless some bug around.
Link: https://lore.kernel.org/r/20190723065733.4899-4-leon@kernel.org
Cc: <stable@vger.kernel.org> # 4.10
Fixes: 49780d42dfc9 ("IB/mlx5: Expose MR cache for mlx5_ib")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
Fix unreg_umr to ignore the mkey state and do not fail if was freed. This
prevents a case that a user space application already changed the mkey
state to free and then the UMR operation will fail leaving the mkey in an
inappropriate state.
Link: https://lore.kernel.org/r/20190723065733.4899-3-leon@kernel.org
Cc: <stable@vger.kernel.org> # 3.19
Fixes: 968e78dd9644 ("IB/mlx5: Enhance UMR support to allow partial page table update")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
|
|
Commit 6935224da248 ("spi: bcm2835: enable support of 3-wire mode")
added 3-wire support to the BCM2835 SPI driver by setting the REN bit
(Read Enable) in the CS register when receiving data. The REN bit puts
the transmitter in high-impedance state. The driver recognizes that
data is to be received by checking whether the rx_buf of a transfer is
non-NULL.
Commit 3ecd37edaa2a ("spi: bcm2835: enable dma modes for transfers
meeting certain conditions") subsequently broke 3-wire support because
it set the SPI_MASTER_MUST_RX flag which causes spi_map_msg() to replace
rx_buf with a dummy buffer if it is NULL. As a result, rx_buf is
*always* non-NULL if DMA is enabled.
Reinstate 3-wire support by not only checking whether rx_buf is non-NULL,
but also checking that it is not the dummy buffer.
Fixes: 3ecd37edaa2a ("spi: bcm2835: enable dma modes for transfers meeting certain conditions")
Reported-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org # v4.2+
Cc: Martin Sperl <kernel@martin.sperl.org>
Acked-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/328318841455e505370ef8ecad97b646c033dc8a.1562148527.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
The "ti,lp87565" compatible string is still in of_lp87565_match_table,
but current code will return -EINVAL because lp87565->dev_type is unknown.
This was working in earlier kernel versions, so fix it.
Fixes: 7ee63bd74750 ("regulator: lp87565: Add 4-phase lp87561 regulator support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190711113517.26077-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Linus 5.3-rc1
|
