Commit graph

1144396 commits

Author SHA1 Message Date
Konrad Dybcio
8be358c804 clk: qcom: gcc-sm6115: Mark RCGs shared where applicable
[ Upstream commit 996c32b745 ]

The vast majority of shared RCGs were not marked as such. Fix it.

Fixes: cbe63bfdc5 ("clk: qcom: Add Global Clock controller (GCC) driver for SM6115")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230404224719.909746-1-konrad.dybcio@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:34 +09:00
Tetsuo Handa
e70ce21939 RDMA/siw: Remove namespace check from siw_netdev_event()
[ Upstream commit 266e9b3475 ]

syzbot is reporting that siw_netdev_event(NETDEV_UNREGISTER) cannot destroy
siw_device created after unshare(CLONE_NEWNET) due to net namespace check.
It seems that this check was by error there and should be removed.

Reported-by: syzbot <syzbot+5e70d01ee8985ae62a3b@syzkaller.appspotmail.com>
Link: https://syzkaller.appspot.com/bug?extid=5e70d01ee8985ae62a3b
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Suggested-by: Leon Romanovsky <leon@kernel.org>
Fixes: bdcf26bf9b ("rdma/siw: network and RDMA core interface")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://lore.kernel.org/r/a44e9ac5-44e2-d575-9e30-02483cc7ffd1@I-love.SAKURA.ne.jp
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Clément Léger
d3b2acaa14 clk: add missing of_node_put() in "assigned-clocks" property parsing
[ Upstream commit 27a6e1b09a ]

When returning from of_parse_phandle_with_args(), the np member of the
of_phandle_args structure should be put after usage. Add missing
of_node_put() calls in both __set_clk_parents() and __set_clk_rates().

Fixes: 86be408bfb ("clk: Support for clock parents and rates assigned from device tree")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Link: https://lore.kernel.org/r/20230131083227.10990-1-clement.leger@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Sebastian Reichel
a2b3eaaa97 power: supply: generic-adc-battery: fix unit scaling
[ Upstream commit 44263f5006 ]

power-supply properties are reported in µV, µA and µW.
The IIO API provides mV, mA, mW, so the values need to
be multiplied by 1000.

Fixes: e60fea794e ("power: battery: Generic battery driver using IIO")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Yong Wu
37f689d859 iommu/mediatek: Set dma_mask for PGTABLE_PA_35_EN
[ Upstream commit f045e9df65 ]

When we enable PGTABLE_PA_35_EN, the PA for pgtable may be 35bits.
Thus add dma_mask for it.

Fixes: 301c3ca125 ("iommu/mediatek: Allow page table PA up to 35bit")
Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230316101445.12443-1-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Zeng Heng
9163a5b4ed fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de()
[ Upstream commit ab84eee4c7 ]

Here is a BUG report from syzbot:

BUG: KASAN: slab-out-of-bounds in hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806
Read of size 16842960 at addr ffff888079cc0600 by task syz-executor934/3631

Call Trace:
 memmove+0x25/0x60 mm/kasan/shadow.c:54
 hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806
 indx_delete_entry+0x74f/0x3670 fs/ntfs3/index.c:2193
 ni_remove_name+0x27a/0x980 fs/ntfs3/frecord.c:2910
 ntfs_unlink_inode+0x3d4/0x720 fs/ntfs3/inode.c:1712
 ntfs_rename+0x41a/0xcb0 fs/ntfs3/namei.c:276

Before using the meta-data in struct INDEX_HDR, we need to
check index header valid or not. Otherwise, the corruptedi
(or malicious) fs image can cause out-of-bounds access which
could make kernel panic.

Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Reported-by: syzbot+9c2811fd56591639ff5f@syzkaller.appspotmail.com
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
ZhangPeng
17048287ac fs/ntfs3: Fix OOB read in indx_insert_into_buffer
[ Upstream commit b8c4494904 ]

Syzbot reported a OOB read bug:

BUG: KASAN: slab-out-of-bounds in indx_insert_into_buffer+0xaa3/0x13b0
fs/ntfs3/index.c:1755
Read of size 17168 at addr ffff8880255e06c0 by task syz-executor308/3630

Call Trace:
 <TASK>
 memmove+0x25/0x60 mm/kasan/shadow.c:54
 indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755
 indx_insert_entry+0x446/0x6b0 fs/ntfs3/index.c:1863
 ntfs_create_inode+0x1d3f/0x35c0 fs/ntfs3/inode.c:1548
 ntfs_create+0x3e/0x60 fs/ntfs3/namei.c:100
 lookup_open fs/namei.c:3413 [inline]

If the member struct INDEX_BUFFER *index of struct indx_node is
incorrect, that is, the value of __le32 used is greater than the value
of __le32 total in struct INDEX_HDR. Therefore, OOB read occurs when
memmove is called in indx_insert_into_buffer().
Fix this by adding a check in hdr_find_e().

Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Reported-by: syzbot+d882d57193079e379309@syzkaller.appspotmail.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Jiasheng Jiang
7898db22ed fs/ntfs3: Add check for kmemdup
[ Upstream commit e6c3cef24c ]

Since the kmemdup may return NULL pointer,
it should be better to add check for the return value
in order to avoid NULL pointer dereference.

Fixes: b46acd6a6a ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Chen Zhongjin
1bc6bb657d fs/ntfs3: Fix memory leak if ntfs_read_mft failed
[ Upstream commit bfa434c601 ]

Label ATTR_ROOT in ntfs_read_mft() sets is_root = true and
ni->ni_flags |= NI_FLAG_DIR, then next attr will goto label ATTR_ALLOC
and alloc ni->dir.alloc_run. However two states are not always
consistent and can make memory leak.

 1) attr_name in ATTR_ROOT does not fit the condition it will set
 is_root = true but NI_FLAG_DIR is not set.
 2) next attr_name in ATTR_ALLOC fits the condition and alloc
 ni->dir.alloc_run
 3) in cleanup function ni_clear(), when NI_FLAG_DIR is set, it frees
 ni->dir.alloc_run, otherwise it frees ni->file.run
 4) because NI_FLAG_DIR is not set in this case, ni->dir.alloc_run is
 leaked as kmemleak reported:

unreferenced object 0xffff888003bc5480 (size 64):
  backtrace:
    [<000000003d42e6b0>] __kmalloc_node+0x4e/0x1c0
    [<00000000d8e19b8a>] kvmalloc_node+0x39/0x1f0
    [<00000000fc3eb5b8>] run_add_entry+0x18a/0xa40 [ntfs3]
    [<0000000011c9f978>] run_unpack+0x75d/0x8e0 [ntfs3]
    [<00000000e7cf1819>] run_unpack_ex+0xbc/0x500 [ntfs3]
    [<00000000bbf0a43d>] ntfs_iget5+0xb25/0x2dd0 [ntfs3]
    [<00000000a6e50693>] ntfs_fill_super+0x218d/0x3580 [ntfs3]
    [<00000000b9170608>] get_tree_bdev+0x3fb/0x710
    [<000000004833798a>] vfs_get_tree+0x8e/0x280
    [<000000006e20b8e6>] path_mount+0xf3c/0x1930
    [<000000007bf15a5f>] do_mount+0xf3/0x110
    ...

Fix this by always setting is_root and NI_FLAG_DIR together.

Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Cheng Xu
7d374becc0 RDMA/erdma: Use fixed hardware page size
[ Upstream commit d649c638dc ]

Hardware's page size is 4096, but the kernel's page size may vary. Driver
should use hardware's page size when communicating with hardware.

Fixes: 1550557717 ("RDMA/erdma: Add verbs implementation")
Link: https://lore.kernel.org/r/20230307102924.70577-2-chengyou@linux.alibaba.com
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Dhruva Gole
bb0433ae6f rtc: k3: handle errors while enabling wake irq
[ Upstream commit d31d7300eb ]

Due to the potential failure of enable_irq_wake(), it would be better to
return error if it fails.

Fixes: b09d633575 ("rtc: Introduce ti-k3-rtc")
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20230323085904.957999-1-d-gole@ti.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Martin Blumenstingl
8a4e9482f4 rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time
[ Upstream commit 0e6255fa3f ]

The VRTC alarm register can be programmed with an amount of seconds
after which the SoC will be woken up by the VRTC timer again. We are
already converting the alarm time from meson_vrtc_set_alarm() to
"seconds since 1970". This means we also need to use "seconds since
1970" for the current time.

This fixes a problem where setting the alarm to one minute in the future
results in the firmware (which handles wakeup) to output (on the serial
console) that the system will be woken up in billions of seconds.
ktime_get_raw_ts64() returns the time since boot, not since 1970. Switch
to ktime_get_real_ts64() to fix the calculation of the alarm time and to
make the SoC wake up at the specified date/time. Also the firmware
(which manages suspend) now prints either 59 or 60 seconds until wakeup
(depending on how long it takes for the system to enter suspend).

Fixes: 6ef35398e8 ("rtc: Add Amlogic Virtual Wake RTC")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20230320212142.2355062-1-martin.blumenstingl@googlemail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Dan Carpenter
3ce0df3493 RDMA/mlx4: Prevent shift wrapping in set_user_sq_size()
[ Upstream commit d50b3c73f1 ]

The ucmd->log_sq_bb_count variable is controlled by the user so this
shift can wrap.  Fix it by using check_shl_overflow() in the same way
that it was done in commit 515f60004e ("RDMA/hns: Prevent undefined
behavior in hns_roce_set_user_sq_size()").

Fixes: 839041329f ("IB/mlx4: Sanity check userspace send queue sizes")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/a8dfbd1d-c019-4556-930b-bab1ded73b10@kili.mountain
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Krzysztof Kozlowski
5f5876ae29 rtc: omap: include header for omap_rtc_power_off_program prototype
[ Upstream commit f69c2b5420 ]

Non-static functions should have a prototype:

  drivers/rtc/rtc-omap.c:410:5: error: no previous prototype for ‘omap_rtc_power_off_program’ [-Werror=missing-prototypes]

Fixes: 6256f7f7f2 ("rtc: OMAP: Add support for rtc-only mode")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230311094021.79730-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:33 +09:00
Petr Mladek
c3c2aee6f9 workqueue: Fix hung time report of worker pools
[ Upstream commit 335a42ebb0 ]

The workqueue watchdog prints a warning when there is no progress in
a worker pool. Where the progress means that the pool started processing
a pending work item.

Note that it is perfectly fine to process work items much longer.
The progress should be guaranteed by waking up or creating idle
workers.

show_one_worker_pool() prints state of non-idle worker pool. It shows
a delay since the last pool->watchdog_ts.

The timestamp is updated when a first pending work is queued in
__queue_work(). Also it is updated when a work is dequeued for
processing in worker_thread() and rescuer_thread().

The delay is misleading when there is no pending work item. In this
case it shows how long the last work item is being proceed. Show
zero instead. There is no stall if there is no pending work.

Fixes: 82607adcf9 ("workqueue: implement lockup detector")
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Konrad Dybcio
8fbcfff083 clk: qcom: gcc-qcm2290: Fix up gcc_sdcc2_apps_clk_src
[ Upstream commit 1bf088a9f0 ]

Add the PARENT_ENABLE flag to prevent  the clock from getting stuck
at boot and use floor_ops to avoid SDHCI overclocking.

Fixes: 496d1a13d4 ("clk: qcom: Add Global Clock Controller driver for QCM2290")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230315173048.3497655-1-konrad.dybcio@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Natalia Petrova
bddbb3b9dc RDMA/rdmavt: Delete unnecessary NULL check
[ Upstream commit b73a0b80c6 ]

There is no need to check 'rdi->qp_dev' for NULL. The field 'qp_dev'
is created in rvt_register_device() which will fail if the 'qp_dev'
allocation fails in rvt_driver_qp_init(). Overwise this pointer
doesn't changed and passed to rvt_qp_exit() by the next step.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 0acb0cc7ec ("IB/rdmavt: Initialize and teardown of qpn table")
Signed-off-by: Natalia Petrova <n.petrova@fintech.ru>
Link: https://lore.kernel.org/r/20230303124408.16685-1-n.petrova@fintech.ru
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
AngeloGioacchino Del Regno
a6d8529dcf clk: mediatek: mt8135: Properly use CLK_IS_CRITICAL flag
[ Upstream commit f4f9a9c003 ]

Instead of calling clk_prepare_enable() for clocks that shall stay
enabled, use the CLK_IS_CRITICAL flag, which purpose is exactly that.

Fixes: a8aede7948 ("clk: mediatek: Add basic clocks for Mediatek MT8135.")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230306140543.1813621-52-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
AngeloGioacchino Del Regno
d193c4aea3 clk: mediatek: mt7622: Properly use CLK_IS_CRITICAL flag
[ Upstream commit fa8c0d01df ]

Instead of calling clk_prepare_enable() for clocks that shall stay
enabled, use the CLK_IS_CRITICAL flag, which purpose is exactly that.

Fixes: 2fc0a509e4 ("clk: mediatek: add clock support for MT7622 SoC")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230306140543.1813621-24-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
AngeloGioacchino Del Regno
2b18f12fe6 clk: mediatek: Consistently use GATE_MTK() macro
[ Upstream commit 4c85e20b65 ]

All the various MediaTek clock drivers are, in a way or another,
redefining the GATE_MTK() macro with different names: while some
are doing that by actually using GATE_MTK(), others are copying
it entirely (hence, entirely redefining it).

Change all clock drivers to always and consistently use this macro.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org> # MT8183, MT8192, MT8195 Chromebooks
Link: https://lore.kernel.org/r/20230306140543.1813621-23-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Stable-dep-of: fa8c0d01df ("clk: mediatek: mt7622: Properly use CLK_IS_CRITICAL flag")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
AngeloGioacchino Del Regno
6f24e8ef33 clk: mediatek: mt2712: Add error handling to clk_mt2712_apmixed_probe()
[ Upstream commit 20cace1b9d ]

This function was completely missing error handling: add it.

Fixes: e2f744a82d ("clk: mediatek: Add MT2712 clock support")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230306140543.1813621-8-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Daniil Dulov
23cc819125 RDMA/siw: Fix potential page_array out of range access
[ Upstream commit 271bfcfb83 ]

When seg is equal to MAX_ARRAY, the loop should break, otherwise
it will result in out of range access.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b9be6f18cf ("rdma/siw: transmit path")
Signed-off-by: Daniil Dulov <d.dulov@aladdin.ru>
Link: https://lore.kernel.org/r/20230227091751.589612-1-d.dulov@aladdin.ru
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Kang Chen
d7c8d32e5d IB/hifi1: add a null check of kzalloc_node in hfi1_ipoib_txreq_init
[ Upstream commit c874ad879c ]

kzalloc_node may fails, check it and do the cleanup.

Fixes: b1151b74ff ("IB/hfi1: Fix alloc failure with larger txqueuelen")
Signed-off-by: Kang Chen <void0red@gmail.com>
Link: https://lore.kernel.org/r/20230227100212.910820-1-void0red@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Claudiu Beznea
a2290ed2af clk: at91: clk-sam9x60-pll: fix return value check
[ Upstream commit 1bd8e27fd0 ]

sam9x60_frac_pll_compute_mul_frac() can't return zero. Remove the check
against zero to reflect this.

Fixes: 43b1bb4a9b ("clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230227105931.2812412-1-claudiu.beznea@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Beau Belgrave
0489c2b2c3 tracing/user_events: Ensure write index cannot be negative
[ Upstream commit cd98c93286 ]

The write index indicates which event the data is for and accesses a
per-file array. The index is passed by user processes during write()
calls as the first 4 bytes. Ensure that it cannot be negative by
returning -EINVAL to prevent out of bounds accesses.

Update ftrace self-test to ensure this occurs properly.

Link: https://lkml.kernel.org/r/20230425225107.8525-2-beaub@linux.microsoft.com

Fixes: 7f5a08c79d ("user_events: Add minimal support for trace_event into ftrace")
Reported-by: Doug Cook <dcook@linux.microsoft.com>
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Schspa Shi
6472a6d0c7 sched/rt: Fix bad task migration for rt tasks
[ Upstream commit feffe5bb27 ]

Commit 95158a89dd ("sched,rt: Use the full cpumask for balancing")
allows find_lock_lowest_rq() to pick a task with migration disabled.
The purpose of the commit is to push the current running task on the
CPU that has the migrate_disable() task away.

However, there is a race which allows a migrate_disable() task to be
migrated. Consider:

  CPU0                                    CPU1
  push_rt_task
    check is_migration_disabled(next_task)

                                          task not running and
                                          migration_disabled == 0

    find_lock_lowest_rq(next_task, rq);
      _double_lock_balance(this_rq, busiest);
        raw_spin_rq_unlock(this_rq);
        double_rq_lock(this_rq, busiest);
          <<wait for busiest rq>>
                                              <wakeup>
                                          task become running
                                          migrate_disable();
                                            <context out>
    deactivate_task(rq, next_task, 0);
    set_task_cpu(next_task, lowest_rq->cpu);
      WARN_ON_ONCE(is_migration_disabled(p));

Fixes: 95158a89dd ("sched,rt: Use the full cpumask for balancing")
Signed-off-by: Schspa Shi <schspa@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Tested-by: Dwaine Gonyier <dgonyier@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Alexandre Ghiti
1969b143d0 riscv: Fix ptdump when KASAN is enabled
[ Upstream commit ecd7ebaf0b ]

The KASAN shadow region was moved next to the kernel mapping but the
ptdump code was not updated and it appears to break the dump of the kernel
page table, so fix this by moving the KASAN shadow region in ptdump.

Fixes: f7ae02333d ("riscv: Move KASAN mapping next to the kernel mapping")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20230203075232.274282-6-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Josh Poimboeuf
e38f070a57 Revert "objtool: Support addition to set CFA base"
[ Upstream commit e18398e80c ]

Commit 468af56a7b ("objtool: Support addition to set CFA base") was
added as a preparatory patch for arm64 support, but that support never
came.  It triggers a false positive warning on x86, so just revert it
for now.

Fixes the following warning:

  vmlinux.o: warning: objtool: cdce925_regmap_i2c_write+0xdb: stack state mismatch: cfa1=4+120 cfa2=5+40

Fixes: 468af56a7b ("objtool: Support addition to set CFA base")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/oe-kbuild-all/202304080538.j5G6h1AB-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:32 +09:00
Yang Jihong
2d44928903 perf/core: Fix hardlockup failure caused by perf throttle
[ Upstream commit 15def34e26 ]

commit e050e3f0a7 ("perf: Fix broken interrupt rate throttling")
introduces a change in throttling threshold judgment. Before this,
compare hwc->interrupts and max_samples_per_tick, then increase
hwc->interrupts by 1, but this commit reverses order of these two
behaviors, causing the semantics of max_samples_per_tick to change.
In literal sense of "max_samples_per_tick", if hwc->interrupts ==
max_samples_per_tick, it should not be throttled, therefore, the judgment
condition should be changed to "hwc->interrupts > max_samples_per_tick".

In fact, this may cause the hardlockup to fail, The minimum value of
max_samples_per_tick may be 1, in this case, the return value of
__perf_event_account_interrupt function is 1.
As a result, nmi_watchdog gets throttled, which would stop PMU (Use x86
architecture as an example, see x86_pmu_handle_irq).

Fixes: e050e3f0a7 ("perf: Fix broken interrupt rate throttling")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230227023508.102230-1-yangjihong1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Libo Chen
944465c772 sched/fair: Fix inaccurate tally of ttwu_move_affine
[ Upstream commit 39afe5d6fc ]

There are scenarios where non-affine wakeups are incorrectly counted as
affine wakeups by schedstats.

When wake_affine_idle() returns prev_cpu which doesn't equal to
nr_cpumask_bits, it will slip through the check: target == nr_cpumask_bits
in wake_affine() and be counted as if target == this_cpu in schedstats.

Replace target == nr_cpumask_bits with target != this_cpu to make sure
affine wakeups are accurately tallied.

Fixes: 806486c377 (sched/fair: Do not migrate if the prev_cpu is idle)
Suggested-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Libo Chen <libo.chen@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20220810223313.386614-1-libo.chen@oracle.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Nathan Lynch
46f773f39e powerpc/rtas: use memmove for potentially overlapping buffer copy
[ Upstream commit 271208ee5e ]

Using memcpy() isn't safe when buf is identical to rtas_err_buf, which
can happen during boot before slab is up. Full context which may not
be obvious from the diff:

	if (altbuf) {
		buf = altbuf;
	} else {
		buf = rtas_err_buf;
		if (slab_is_available())
			buf = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
	}
	if (buf)
		memcpy(buf, rtas_err_buf, RTAS_ERROR_LOG_MAX);

This was found by inspection and I'm not aware of it causing problems
in practice. It appears to have been introduced by commit
033ef338b6 ("powerpc: Merge rtas.c into arch/powerpc/kernel"); the
old ppc64 version of this code did not have this problem.

Use memmove() instead.

Fixes: 033ef338b6 ("powerpc: Merge rtas.c into arch/powerpc/kernel")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220-rtas-queue-for-6-4-v1-2-010e4416f13f@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Randy Dunlap
8bcecadabb macintosh: via-pmu-led: requires ATA to be set
[ Upstream commit 05dce4ba12 ]

LEDS_TRIGGER_DISK depends on ATA, so selecting LEDS_TRIGGER_DISK
when ATA is not set/enabled causes a Kconfig warning:

WARNING: unmet direct dependencies detected for LEDS_TRIGGER_DISK
  Depends on [n]: NEW_LEDS [=y] && LEDS_TRIGGERS [=y] && ATA [=n]
  Selected by [y]:
  - ADB_PMU_LED_DISK [=y] && MACINTOSH_DRIVERS [=y] && ADB_PMU_LED [=y] && LEDS_CLASS [=y]

Fix this by making ADB_PMU_LED_DISK depend on ATA.

Seen on both PPC32 and PPC64.

Fixes: 0e865a80c1 ("macintosh: Remove dependency on IDE_GD_ATA if ADB_PMU_LED_DISK is selected")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230223014241.20878-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Randy Dunlap
5dae22c28f powerpc/sysdev/tsi108: fix resource printk format warnings
[ Upstream commit 55d8bd02cc ]

Use "%pa" format specifier for resource_size_t to avoid a compiler
printk format warning.

  arch/powerpc/sysdev/tsi108_pci.c: In function 'tsi108_setup_pci':
  include/linux/kern_levels.h:5:25: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t'

Fixes: c4342ff92b ("[POWERPC] Update mpc7448hpc2 board irq support using device tree")
Fixes: 2b9d7467a6 ("[POWERPC] Add tsi108 pci and platform device data register function")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[mpe: Use pr_info() and unsplit string]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230223070116.660-5-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Randy Dunlap
89e458456c powerpc/wii: fix resource printk format warnings
[ Upstream commit 7b69600d4d ]

Use "%pa" format specifier for resource_size_t to avoid compiler
printk format warnings.

../arch/powerpc/platforms/embedded6xx/flipper-pic.c: In function 'flipper_pic_init':
../include/linux/kern_levels.h:5:25: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
../arch/powerpc/platforms/embedded6xx/flipper-pic.c:148:9: note: in expansion of macro 'pr_info'
  148 |         pr_info("controller at 0x%08x mapped to 0x%p\n", res.start, io_base);
      |         ^~~~~~~

../arch/powerpc/platforms/embedded6xx/hlwd-pic.c: In function 'hlwd_pic_init':
../include/linux/kern_levels.h:5:25: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
../arch/powerpc/platforms/embedded6xx/hlwd-pic.c:174:9: note: in expansion of macro 'pr_info'
  174 |         pr_info("controller at 0x%08x mapped to 0x%p\n", res.start, io_base);
      |         ^~~~~~~

../arch/powerpc/platforms/embedded6xx/wii.c: In function 'wii_ioremap_hw_regs':
../include/linux/kern_levels.h:5:25: error: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
../arch/powerpc/platforms/embedded6xx/wii.c:77:17: note: in expansion of macro 'pr_info'
   77 |                 pr_info("%s at 0x%08x mapped to 0x%p\n", name,
      |                 ^~~~~~~

Fixes: 028ee972f0 ("powerpc: gamecube/wii: flipper interrupt controller support")
Fixes: 9c21025c78 ("powerpc: wii: hollywood interrupt controller support")
Fixes: 5a7ee3198d ("powerpc: wii: platform support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230223070116.660-3-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Randy Dunlap
2f40b71e46 powerpc/mpc512x: fix resource printk format warning
[ Upstream commit 7538c97e2b ]

Use "%pa" format specifier for resource_size_t to avoid a compiler
printk format warning.

../arch/powerpc/platforms/512x/clock-commonclk.c: In function 'mpc5121_clk_provide_backwards_compat':
../arch/powerpc/platforms/512x/clock-commonclk.c:989:44: error: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
  989 |         snprintf(devname, sizeof(devname), "%08x.%s", res.start, np->name); \
      |                                            ^~~~~~~~~  ~~~~~~~~~
      |                                                          |
      |                                                          resource_size_t {aka long long unsigned int}

Prevents 24 such warnings.

Fixes: 01f25c3716 ("clk: mpc512x: add backwards compat to the CCF code")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230223070116.660-2-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Christophe Leroy
f9325ac52f powerpc/perf: Properly detect mpc7450 family
[ Upstream commit e7299f961f ]

Unlike PVR_POWER8, etc ...., PVR_7450 represents a full PVR
value and not a family value.

To avoid confusion, do like E500 family and define the relevant
PVR_VER_xxxx values for the 7450 family:
  0x8000 ==> 7450
  0x8001 ==> 7455
  0x8002 ==> 7447
  0x8003 ==> 7447A
  0x8004 ==> 7448

And use them to detect 7450 family for perf events.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202302260657.7dM9Uwev-lkp@intel.com/
Fixes: ec3eb9d941 ("powerpc/perf: Use PVR rather than oprofile field to determine CPU version")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/99ca1da2e5a6cf82a8abf4bc034918e500e31781.1677513277.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Liang He
7c71aee351 macintosh/windfarm_smu_sat: Add missing of_node_put()
[ Upstream commit 631cf00282 ]

We call of_node_get() in wf_sat_probe() after sat is created,
so we need the of_node_put() before *kfree(sat)*.

Fixes: ac171c4666 ("[PATCH] powerpc: Thermal control for dual core G5s")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230330033558.2562778-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Kajol Jain
c0f49bbb30 selftests/powerpc/pmu: Fix sample field check in the mmcra_thresh_marked_sample_test
[ Upstream commit 8a32341cf0 ]

The testcase verifies the setting of different fields in Monitor Mode
Control Register A (MMCRA). In the current code, EV_CODE_EXTRACT macro
is used to extract the "sample" field, which then needs to be further
processed to fetch rand_samp_elig and rand_samp_mode bits. But the
current code is not passing valid sample field to EV_CODE_EXTRACT
macro. Patch addresses this by fixing the input for EV_CODE_EXTRACT.

Fixes: 29cf373c57 ("selftests/powerpc/pmu: Add interface test for mmcra register fields")
Reported-by: David Binderman <dcb314@hotmail.com>
Link: https://lore.kernel.org/r/DB6P189MB0568CF002762C6C43AF6DF169CA89@DB6P189MB0568.EURP189.PROD.OUTLOOK.COM
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230301170918.69176-1-kjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Christophe JAILLET
ae69d36d46 fbdev: mmp: Fix deferred clk handling in mmphw_probe()
[ Upstream commit b3a7a9ab65 ]

When dev_err_probe() is called, 'ret' holds the value of the previous
successful devm_request_irq() call.
'ret' should be assigned with a meaningful value before being used in
dev_err_probe().

While at it, use and return "PTR_ERR(ctrl->clk)" instead of a hard-coded
"-ENOENT" so that -EPROBE_DEFER is handled and propagated correctly.

Fixes: 81b6342056 ("fbdev: mmp: Make use of the helper function dev_err_probe()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Albert Huang
ce818ee162 virtio_ring: don't update event idx on get_buf
[ Upstream commit 6c0b057cec ]

In virtio_net, if we disable napi_tx, when we trigger a tx interrupt,
the vq->event_triggered will be set to true. It is then never reset
until we explicitly call virtqueue_enable_cb_delayed or
virtqueue_enable_cb_prepare.

If we disable the napi_tx, virtqueue_enable_cb* will only be called when
the tx ring is getting relatively empty.

Since event_triggered is true, VRING_AVAIL_F_NO_INTERRUPT or
VRING_PACKED_EVENT_FLAG_DISABLE will not be set. As a result we update
vring_used_event(&vq->split.vring) or vq->packed.vring.driver->off_wrap
every time we call virtqueue_get_buf_ctx. This causes more interrupts.

To summarize:
1) event_triggered was set to true in vring_interrupt()
2) after this nothing will happen in virtqueue_disable_cb() so
   VRING_AVAIL_F_NO_INTERRUPT is not set in avail_flags_shadow
3) virtqueue_get_buf_ctx_split() will still think the cb is enabled
   and then it will publish a new event index

To fix:
update VRING_AVAIL_F_NO_INTERRUPT or VRING_PACKED_EVENT_FLAG_DISABLE in
the vq when we call virtqueue_disable_cb even when event_triggered is
true.

Tested with iperf:
iperf3 tcp stream:
vm1 -----------------> vm2
vm2 just receives tcp data stream from vm1, and sends acks to vm1,
there are many tx interrupts in vm2.
with the patch applied there are just a few tx interrupts.

v2->v3:
-update the interrupt disable flag even with the event_triggered is set,
-instead of checking whether event_triggered is set in
-virtqueue_get_buf_ctx_{packed/split}, will cause the drivers  which have
-not called virtqueue_{enable/disable}_cb to miss notifications.

v3->v4:
-remove change for
-"if (vq->packed.event_flags_shadow != VRING_PACKED_EVENT_FLAG_DISABLE)"
-in virtqueue_disable_cb_packed

Fixes: 8d622d21d2 ("virtio: fix up virtio_disable_cb")
Signed-off-by: Albert Huang <huangjie.albert@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230329102300.61000-1-huangjie.albert@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Jishnu Prakash
428cc25270 spmi: Add a check for remove callback when removing a SPMI driver
[ Upstream commit b56eef3e16 ]

When removing a SPMI driver, there can be a crash due to NULL pointer
dereference if it does not have a remove callback defined. This is
one such call trace observed when removing the QCOM SPMI PMIC driver:

 dump_backtrace.cfi_jt+0x0/0x8
 dump_stack_lvl+0xd8/0x16c
 panic+0x188/0x498
 __cfi_slowpath+0x0/0x214
 __cfi_slowpath+0x1dc/0x214
 spmi_drv_remove+0x16c/0x1e0
 device_release_driver_internal+0x468/0x79c
 driver_detach+0x11c/0x1a0
 bus_remove_driver+0xc4/0x124
 driver_unregister+0x58/0x84
 cleanup_module+0x1c/0xc24 [qcom_spmi_pmic]
 __do_sys_delete_module+0x3ec/0x53c
 __arm64_sys_delete_module+0x18/0x28
 el0_svc_common+0xdc/0x294
 el0_svc+0x38/0x9c
 el0_sync_handler+0x8c/0xf0
 el0_sync+0x1b4/0x1c0

If a driver has all its resources allocated through devm_() APIs and
does not need any other explicit cleanup, it would not require a
remove callback to be defined. Hence, add a check for remove callback
presence before calling it when removing a SPMI driver.

Link: https://lore.kernel.org/r/1671601032-18397-2-git-send-email-quic_jprakash@quicinc.com
Fixes: 6f00f8c863 ("mfd: qcom-spmi-pmic: Use devm_of_platform_populate()")
Fixes: 5a86bf3439 ("spmi: Linux driver framework for SPMI")
Signed-off-by: Jishnu Prakash <quic_jprakash@quicinc.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20230413223834.4084793-7-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:31 +09:00
Philipp Hortmann
ec01408c0f staging: rtl8192e: Fix W_DISABLE# does not work after stop/start
[ Upstream commit 3fac2397f5 ]

When loading the driver for rtl8192e, the W_DISABLE# switch is working as
intended. But when the WLAN is turned off in software and then turned on
again the W_DISABLE# does not work anymore. Reason for this is that in
the function _rtl92e_dm_check_rf_ctrl_gpio() the bfirst_after_down is
checked and returned when true. bfirst_after_down is set true when
switching the WLAN off in software. But it is not set to false again
when WLAN is turned on again.

Add bfirst_after_down = false in _rtl92e_sta_up to reset bit and fix
above described bug.

Fixes: 94a799425e ("From: wlanfae <wlanfae@realtek.com> [PATCH 1/8] rtl8192e: Import new version of driver from realtek")
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20230418200201.GA17398@matrix-ESPRIMO-P710
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Dhruva Gole
7f43a5bde8 spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS
[ Upstream commit be3206e890 ]

Using this macro makes the code more readable.
It also inits the members of dev_pm_ops in the following manner
without us explicitly needing to:

.suspend = cqspi_suspend, \
.resume = cqspi_resume, \
.freeze = cqspi_suspend, \
.thaw = cqspi_resume, \
.poweroff = cqspi_suspend, \
.restore = cqspi_resume

Also get rid of conditional compilation based on CONFIG_PM_SLEEP because
it introduces build issues with certain configs when CQSPI_DEV_PM_OPS is
just NULL.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304191900.2fARFQW9-lkp@intel.com/
Fixes: 1406234105 ("mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller")
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20230420054257.925092-1-d-gole@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Florian Fainelli
727e92fe13 serial: 8250: Add missing wakeup event reporting
[ Upstream commit 0ba9e3a13c ]

An 8250 UART configured as a wake-up source would not have reported
itself through sysfs as being the source of wake-up, correct that.

Fixes: b3b708fa27 ("wake up from a serial port")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230414170241.2016255-1-f.fainelli@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Shenwei Wang
1ae3e5f202 tty: serial: fsl_lpuart: adjust buffer length to the intended size
[ Upstream commit f73fd75055 ]

Based on the fls function definition provided below, we should not
subtract 1 to obtain the correct buffer length:

fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.

Fixes: 5887ad43ee ("tty: serial: fsl_lpuart: Use cyclic DMA for Rx")
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Link: https://lore.kernel.org/r/20230410195555.1003900-1-shenwei.wang@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Dan Carpenter
26d40b3fca firmware: stratix10-svc: Fix an NULL vs IS_ERR() bug in probe
[ Upstream commit e1d6ca042e ]

The svc_create_memory_pool() function returns error pointers.  It never
returns NULL.  Fix the check.

Fixes: 7ca5ce8965 ("firmware: add Intel Stratix10 service layer driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/5f9a8cb4-5a4f-460b-9cdc-2fae6c5b7922@kili.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Chunfeng Yun
f262734286 usb: mtu3: fix kernel panic at qmu transfer done irq handler
[ Upstream commit d28f4091ea ]

When handle qmu transfer irq, it will unlock @mtu->lock before give back
request, if another thread handle disconnect event at the same time, and
try to disable ep, it may lock @mtu->lock and free qmu ring, then qmu
irq hanlder may get a NULL gpd, avoid the KE by checking gpd's value before
handling it.

e.g.
qmu done irq on cpu0                 thread running on cpu1

qmu_done_tx()
  handle gpd [0]
    mtu3_requ_complete()        mtu3_gadget_ep_disable()
      unlock @mtu->lock
        give back request         lock @mtu->lock
                                    mtu3_ep_disable()
                                      mtu3_gpd_ring_free()
                                   unlock @mtu->lock
      lock @mtu->lock
    get next gpd [1]

[1]: goto [0] to handle next gpd, and next gpd may be NULL.

Fixes: 48e0d3735a ("usb: mtu3: supports new QMU format")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20230417025203.18097-3-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Yinhao Hu
17993a13b5 usb: chipidea: fix missing goto in ci_hdrc_probe
[ Upstream commit d6f712f53b ]

From the comment of ci_usb_phy_init, it returns an error code if
usb_phy_init has failed, and it should do some clean up, not just
return directly.

Fix this by goto the error handling.

Fixes: 74475ede78 ("usb: chipidea: move PHY operation to core")
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Yinhao Hu <dddddd@hust.edu.cn>
Link: https://lore.kernel.org/r/20230412055852.971991-1-dddddd@hust.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
Jon Hunter
94fa043a47 usb: gadget: tegra-xudc: Fix crash in vbus_draw
[ Upstream commit 5629d31955 ]

Commit ac82b56bda ("usb: gadget: tegra-xudc: Add vbus_draw support")
populated the vbus_draw callback for the Tegra XUDC driver. The function
tegra_xudc_gadget_vbus_draw(), that was added by this commit, assumes
that the pointer 'curr_usbphy' has been initialised, which is not always
the case because this is only initialised when the USB role is updated.
Fix this crash, by checking that the 'curr_usbphy' is valid before
dereferencing.

Fixes: ac82b56bda ("usb: gadget: tegra-xudc: Add vbus_draw support")
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20230405181854.42355-1-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00
John Paul Adrian Glaubitz
6a1cfc3036 sh: sq: Fix incorrect element size for allocating bitmap buffer
[ Upstream commit 80f746e2bd ]

The Store Queue code allocates a bitmap buffer with the size of
multiple of sizeof(long) in sq_api_init(). While the buffer size
is calculated correctly, the code uses the wrong element size to
allocate the buffer which results in the allocated bitmap buffer
being too small.

Fix this by allocating the buffer with kcalloc() with element size
sizeof(long) instead of kzalloc() whose elements size defaults to
sizeof(char).

Fixes: d7c30c682a ("sh: Store Queue API rework.")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230419114854.528677-1-glaubitz@physik.fu-berlin.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:03:30 +09:00