Commit Graph

827 Commits

Author SHA1 Message Date
Su Hui
40bcbf7d90 wifi: rtlwifi: rtl8723{be,ae}: using calculate_bit_shift()
[ Upstream commit 5c16618bc06a41ad68fd8499a21d35ef57ca06c2 ]

Using calculate_bit_shift() to replace rtl8723_phy_calculate_bit_shift().
And fix an undefined bitwise shift behavior problem.

Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-12-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:42:10 +01:00
Ilpo Järvinen
ba8a4fba62 wifi: rtlwifi: Convert LNKCTL change to PCIe cap RMW accessors
commit 5894d0089cbc146063dcc0239a78ede0a8142efb upstream.

The rtlwifi driver comes with custom code to write into PCIe Link
Control register. RMW access for the Link Control register requires
locking that is already provided by the standard PCIe capability
accessors.

Convert the custom RMW code writing into LNKCTL register to standard
RMW capability accessors. The accesses are changed to cover the full
LNKCTL register instead of touching just a single byte of the register.

Fixes: 0c8173385e ("rtl8192ce: Add new driver")
Cc: stable@vger.kernel.org
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231124084725.12738-3-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-25 14:37:52 -08:00
Ilpo Järvinen
3dc3122b0b wifi: rtlwifi: Remove bogus and dangerous ASPM disable/enable code
commit b3943b3c2971444364e03224cfc828c5789deada upstream.

Ever since introduction in the commit 0c8173385e ("rtl8192ce: Add new
driver") the rtlwifi code has, according to comments, attempted to
disable/enable ASPM of the upstream bridge by writing into its LNKCTL
register. However, the code has never been correct because it performs
the writes to the device instead of the upstream bridge.

Worse yet, the offset where the PCIe capabilities reside is derived
from the offset of the upstream bridge. As a result, the write will use
an offset on the device that does not relate to the LNKCTL register
making the ASPM disable/enable code outright dangerous.

Because of those problems, there is no indication that the driver needs
disable/enable ASPM on the upstream bridge. As the Capabilities offset
is not correctly calculated for the write to target device's LNKCTL
register, the code is not disabling/enabling device's ASPM either.
Therefore, just remove the upstream bridge related ASPM disable/enable
code entirely.

The upstream bridge related ASPM code was the only user of the struct
mp_adapter members num4bytes, pcibridge_pciehdr_offset, and
pcibridge_linkctrlreg so those are removed as well.

Note: This change does not remove the code related to changing the
device's ASPM on purpose (which is independent of this flawed code
related to upstream bridge's ASPM).

Suggested-by: Bjorn Helgaas <bhelgaas@kernel.org>
Fixes: 0c8173385e ("rtl8192ce: Add new driver")
Fixes: 886e14b65a ("rtlwifi: Eliminate raw reads and writes from PCIe portion")
Cc: stable@vger.kernel.org
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231124084725.12738-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-25 14:37:52 -08:00
Su Hui
6f39bea662 wifi: rtlwifi: rtl8192se: using calculate_bit_shift()
[ Upstream commit ac32b9317063b101a8ff3d3e885f76f87a280419 ]

Using calculate_bit_shift() to replace _rtl92s_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: d15853163b ("rtlwifi: rtl8192se: Merge phy routines")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-10-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
c713826653 wifi: rtlwifi: rtl8192ee: using calculate_bit_shift()
[ Upstream commit 63526897fc0d086069bcab67c3a112caaec751cb ]

Using calculate_bit_shift() to replace _rtl92ee_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: b1a3bfc97c ("rtlwifi: rtl8192ee: Move driver from staging to the regular tree")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-9-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
99f56c3f7c wifi: rtlwifi: rtl8192de: using calculate_bit_shift()
[ Upstream commit b8b2baad2e652042cf8b6339939ac2f4e6f53de4 ]

Using calculate_bit_shift() to replace _rtl92d_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: 7274a8c229 ("rtlwifi: rtl8192de: Merge phy routines")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-8-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Colin Ian King
b75b68dde5 rtlwifi: rtl8192de: make arrays static const, makes object smaller
[ Upstream commit b05897ca8c821a16ac03850c4704fe460b3f21a0 ]

Don't populate arrays the stack but instead make them static const. Replace
array channel_info with channel_all since it contains the same data as
channel_all. Makes object code smaller by 961 bytes.

Before:
   text	   data	    bss	    dec	   hex	filename
 128147	  44250	   1024	 173421	 2a56d	../realtek/rtlwifi/rtl8192de/phy.o

After
   text	   data	    bss	    dec	   hex	filename
 127122	  44314	   1024	 172460	 2a1ac	../realtek/rtlwifi/rtl8192de/phy.o

(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210803144949.79433-2-colin.king@canonical.com
Stable-dep-of: b8b2baad2e65 ("wifi: rtlwifi: rtl8192de: using calculate_bit_shift()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
df14e43219 wifi: rtlwifi: rtl8192ce: using calculate_bit_shift()
[ Upstream commit 3d03e8231031bcc65a48cd88ef9c71b6524ce70b ]

Using calculate_bit_shift() to replace _rtl92c_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: 0c8173385e ("rtl8192ce: Add new driver")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-7-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
016781c16e wifi: rtlwifi: rtl8192cu: using calculate_bit_shift()
[ Upstream commit f4088c8fcbabadad9dd17d17ae9ba24e9e3221ec ]

Using calculate_bit_shift() to replace _rtl92c_phy_calculate_bit_shift().
And fix an undefined bitwise shift behavior problem.

Fixes: f0a39ae738 ("rtlwifi: rtl8192cu: Add routine phy")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-6-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
bf277a76d3 wifi: rtlwifi: rtl8192c: using calculate_bit_shift()
[ Upstream commit 1dedc3a6699d827d345019e921b8d8f37f694333 ]

Using calculate_bit_shift() to replace _rtl92c_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: 4295cd254a ("rtlwifi: Move common parts of rtl8192ce/phy.c")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-5-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
483c975e40 wifi: rtlwifi: rtl8188ee: phy: using calculate_bit_shift()
[ Upstream commit 969bc926f04b438676768aeffffffb050e480b62 ]

Using calculate_bit_shift() to replace _rtl88e_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: f0eb856e0b ("rtlwifi: rtl8188ee: Add new driver")
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-4-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
31b651a7a1 wifi: rtlwifi: add calculate_bit_shift()
[ Upstream commit 52221dfddbbfb5b4e029bb2efe9bb7da33ec1e46 ]

There are many same functions like _rtl88e_phy_calculate_bit_shift(),
_rtl92c_phy_calculate_bit_shift() and so on. And these functions can
cause undefined bitwise shift behavior. Add calculate_bit_shift() to
replace them and fix undefined behavior in subsequent patches.

Signed-off-by: Su Hui <suhui@nfschina.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231219065739.1895666-2-suhui@nfschina.com
Stable-dep-of: 969bc926f04b ("wifi: rtlwifi: rtl8188ee: phy: using calculate_bit_shift()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:45 -08:00
Su Hui
d49863ed28 wifi: rtlwifi: rtl8821ae: phy: fix an undefined bitwise shift behavior
[ Upstream commit bc8263083af60e7e57c6120edbc1f75d6c909a35 ]

Clang static checker warns:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:184:49:
	The result of the left shift is undefined due to shifting by '32',
	which is greater or equal to the width of type 'u32'.
	[core.UndefinedBinaryOperatorResult]

If the value of the right operand is negative or is greater than or
equal to the width of the promoted left operand, the behavior is
undefined.[1][2]

For example, when using different gcc's compilation optimization options
(-O0 or -O2), the result of '(u32)data << 32' is different. One is 0, the
other is old value of data. Let _rtl8821ae_phy_calculate_bit_shift()'s
return value less than 32 to fix this problem. Warn if bitmask is zero.

[1] https://stackoverflow.com/questions/11270492/what-does-the-c-standard-say-about-bitshifting-more-bits-than-the-width-of-type
[2] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf

Fixes: 21e4b0726d ("rtlwifi: rtl8821ae: Move driver from staging to regular tree")
Signed-off-by: Su Hui <suhui@nfschina.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231127013511.26694-2-suhui@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 14:37:44 -08:00
Dmitry Antipov
03d138b6b2 wifi: rtlwifi: fix EDCA limit set by BT coexistence
[ Upstream commit 3391ee7f9ea508c375d443cd712c2e699be235b4 ]

In 'rtl92c_dm_check_edca_turbo()', 'rtl88e_dm_check_edca_turbo()',
and 'rtl8723e_dm_check_edca_turbo()', the DL limit should be set
from the corresponding field of 'rtlpriv->btcoexist' rather than
UL. Compile tested only.

Fixes: 0529c6b817 ("rtlwifi: rtl8723ae: Update driver to match 06/28/14 Realtek version")
Fixes: c151aed6aa ("rtlwifi: rtl8188ee: Update driver to match Realtek release of 06282014")
Fixes: beb5bc4020 ("rtlwifi: rtl8192c-common: Convert common dynamic management routines for addition of rtl8192se and rtl8192de")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230928052327.120178-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:06:45 +01:00
Wei Chen
dc55805db2 wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_reg()
[ Upstream commit 5dbe1f8eb8c5ac69394400a5b86fd81775e96c43 ]

If there is a failure during copy_from_user or user-provided data buffer is
invalid, rtl_debugfs_set_write_reg should return negative error code instead
of a positive value count.

Fix this bug by returning correct error code. Moreover, the check of buffer
against null is removed since it will be handled by copy_from_user.

Fixes: 610247f46f ("rtlwifi: Improve debugging by using debugfs")
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230326054217.93492-1-harperchen1110@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:47:50 +02:00
Wei Chen
c621697505 wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_rfreg()
[ Upstream commit 905a9241e4e8c15d2c084fee916280514848fe35 ]

If there is a failure during copy_from_user or user-provided data buffer
is invalid, rtl_debugfs_set_write_rfreg should return negative error code
instead of a positive value count.

Fix this bug by returning correct error code. Moreover, the check of buffer
against null is removed since it will be handled by copy_from_user.

Fixes: 610247f46f ("rtlwifi: Improve debugging by using debugfs")
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230326053138.91338-1-harperchen1110@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:47:50 +02:00
Li Zetao
1e950b9a84 wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit()
[ Upstream commit 117dbeda22ec5ea0918254d03b540ef8b8a64d53 ]

There is a global-out-of-bounds reported by KASAN:

  BUG: KASAN: global-out-of-bounds in
  _rtl8812ae_eq_n_byte.part.0+0x3d/0x84 [rtl8821ae]
  Read of size 1 at addr ffffffffa0773c43 by task NetworkManager/411

  CPU: 6 PID: 411 Comm: NetworkManager Tainted: G      D
  6.1.0-rc8+ #144 e15588508517267d37
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
  Call Trace:
   <TASK>
   ...
   kasan_report+0xbb/0x1c0
   _rtl8812ae_eq_n_byte.part.0+0x3d/0x84 [rtl8821ae]
   rtl8821ae_phy_bb_config.cold+0x346/0x641 [rtl8821ae]
   rtl8821ae_hw_init+0x1f5e/0x79b0 [rtl8821ae]
   ...
   </TASK>

The root cause of the problem is that the comparison order of
"prate_section" in _rtl8812ae_phy_set_txpower_limit() is wrong. The
_rtl8812ae_eq_n_byte() is used to compare the first n bytes of the two
strings from tail to head, which causes the problem. In the
_rtl8812ae_phy_set_txpower_limit(), it was originally intended to meet
this requirement by carefully designing the comparison order.
For example, "pregulation" and "pbandwidth" are compared in order of
length from small to large, first is 3 and last is 4. However, the
comparison order of "prate_section" dose not obey such order requirement,
therefore when "prate_section" is "HT", when comparing from tail to head,
it will lead to access out of bounds in _rtl8812ae_eq_n_byte(). As
mentioned above, the _rtl8812ae_eq_n_byte() has the same function as
strcmp(), so just strcmp() is enough.

Fix it by removing _rtl8812ae_eq_n_byte() and use strcmp() barely.
Although it can be fixed by adjusting the comparison order of
"prate_section", this may cause the value of "rate_section" to not be
from 0 to 5. In addition, commit "21e4b0726dc6" not only moved driver
from staging to regular tree, but also added setting txpower limit
function during the driver config phase, so the problem was introduced
by this commit.

Fixes: 21e4b0726d ("rtlwifi: rtl8821ae: Move driver from staging to regular tree")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221212025812.1541311-1-lizetao1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:39:17 +01:00
Arnd Bergmann
d4fddfd728 rtlwifi: fix -Wpointer-sign warning
[ Upstream commit ef41937631bfee855e2b406e1d536efdaa9ce512 ]

There are thousands of warnings in a W=2 build from just one file:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/table.c:3788:15: warning: pointer targets in initialization of 'u8 *' {aka 'unsigned char *'} from 'char *' differ in signedness [-Wpointer-sign]

Change the types to consistently use 'const char *' for the
strings.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201026213040.3889546-6-arnd@kernel.org
Stable-dep-of: 117dbeda22ec ("wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:39:17 +01:00
Yang Yingliang
0e5b782c1c wifi: rtlwifi: rtl8723be: don't call kfree_skb() under spin_lock_irqsave()
[ Upstream commit 313950c2114e7051c4e3020fd82495fa1fb526a8 ]

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. All the SKBs have
been dequeued from the old queue, so it's safe to enqueue these
SKBs to a free queue, then free them after spin_unlock_irqrestore()
at once. Compile tested only.

Fixes: 5c99f04fec ("rtlwifi: rtl8723be: Update driver to match Realtek release of 06/28/14")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207141411.46098-4-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:39:16 +01:00
Yang Yingliang
97018e737b wifi: rtlwifi: rtl8188ee: don't call kfree_skb() under spin_lock_irqsave()
[ Upstream commit 2611687fa7ffc84190f92292de0b80468de17220 ]

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. All the SKBs have
been dequeued from the old queue, so it's safe to enqueue these
SKBs to a free queue, then free them after spin_unlock_irqrestore()
at once. Compile tested only.

Fixes: 7fe3b3abb5 ("rtlwifi: rtl8188ee: rtl8821ae: Fix a queue locking problem")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207141411.46098-3-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:39:16 +01:00
Yang Yingliang
d85d0b1a61 wifi: rtlwifi: rtl8821ae: don't call kfree_skb() under spin_lock_irqsave()
[ Upstream commit 106031c1f4a850915190d7ec1026696282f9359b ]

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. All the SKBs have
been dequeued from the old queue, so it's safe to enqueue these
SKBs to a free queue, then free them after spin_unlock_irqrestore()
at once. Compile tested only.

Fixes: 5c99f04fec ("rtlwifi: rtl8723be: Update driver to match Realtek release of 06/28/14")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207141411.46098-2-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:39:16 +01:00
Ping-Ke Shih
289f512d08 wifi: rtlwifi: 8192de: correct checking of IQK reload
commit 93fbc1ebd978cf408ef5765e9c1630fce9a8621b upstream.

Since IQK could spend time, we make a cache of IQK result matrix that looks
like iqk_matrix[channel_idx].val[x][y], and we can reload the matrix if we
have made a cache. To determine a cache is made, we check
iqk_matrix[channel_idx].val[0][0].

The initial commit 7274a8c229 ("rtlwifi: rtl8192de: Merge phy routines")
make a mistake that checks incorrect iqk_matrix[channel_idx].val[0] that
is always true, and this mistake is found by commit ee3db469dd31
("wifi: rtlwifi: remove always-true condition pointed out by GCC 12"), so
I recall the vendor driver to find fix and apply the correctness.

Fixes: 7274a8c229 ("rtlwifi: rtl8192de: Merge phy routines")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220801113345.42016-1-pkshih@realtek.com
Signed-off-by: Semyon Verchenko <semverchenko@factor-ts.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-14 10:16:29 +01:00
Jakub Kicinski
0f6d6974b0 wifi: rtlwifi: remove always-true condition pointed out by GCC 12
commit ee3db469dd317e82f57b13aa3bc61be5cb60c2b4 upstream.

The .value is a two-dim array, not a pointer.

struct iqk_matrix_regs {
	bool iqk_done;
        long value[1][IQK_MATRIX_REG_NUM];
};

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Semyon Verchenko <semverchenko@factor-ts.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-14 10:16:29 +01:00
Dan Carpenter
58fd794675 wifi: rtlwifi: fix error codes in rtl_debugfs_set_write_h2c()
[ Upstream commit b88d28146c30a8e14f0f012d56ebf19b68a348f4 ]

If the copy_from_user() fails or the user gives invalid date then the
correct thing to do is to return a negative error code.  (Currently it
returns success).

I made a copy additional related cleanups:
1) There is no need to check "buffer" for NULL.  That's handled by
copy_from_user().
2) The "h2c_len" variable cannot be negative because it is unsigned
and because sscanf() does not return negative error codes.

Fixes: 610247f46f ("rtlwifi: Improve debugging by using debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/YoOLnDkHgVltyXK7@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-21 15:15:38 +02:00
Dongliang Mu
f9413b9023 rtlwifi: Use pr_warn instead of WARN_ONCE
[ Upstream commit ad732da434a2936128769216eddaece3b1af4588 ]

This memory allocation failure can be triggered by fault injection or
high pressure testing, resulting a WARN.

Fix this by replacing WARN with pr_warn.

Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220511014453.1621366-1-dzm91@hust.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-09 10:20:54 +02:00
Larry Finger
358a4b054a rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
commit 8b144dedb928e4e2f433a328d58f44c3c098d63e upstream.

Syzbot reports the following WARNING:

[200~raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 1206 at kernel/locking/irqflag-debug.c:10
   warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10

Hardware initialization for the rtl8188cu can run for as long as 350 ms,
and the routine may be called with interrupts disabled. To avoid locking
the machine for this long, the current routine saves the interrupt flags
and enables local interrupts. The problem is that it restores the flags
at the end without disabling local interrupts first.

This patch fixes commit a53268be0c ("rtlwifi: rtl8192cu: Fix too long
disable of IRQs").

Reported-by: syzbot+cce1ee31614c171f5595@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Fixes: a53268be0c ("rtlwifi: rtl8192cu: Fix too long disable of IRQs")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211215171105.20623-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-20 09:17:51 +01:00
Greg Kroah-Hartman
e81f94a71b net: rtlwifi: properly check for alloc_workqueue() failure
commit 30b0e0ee9d02b97b68705c46b41444786effc40c upstream.

If alloc_workqueue() fails, properly catch this and propagate the error
to the calling functions, so that the devuce initialization will
properly error out.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:56 +02:00
Greg Kroah-Hartman
5e4fd74089 Revert "rtlwifi: fix a potential NULL pointer dereference"
commit 68c5634c4a7278672a3bed00eb5646884257c413 upstream.

This reverts commit 765976285a.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

This commit is not correct, it should not have used unlikely() and is
not propagating the error properly to the calling function, so it should
be reverted at this point in time.  Also, if the check failed, the
work queue was still assumed to be allocated, so further accesses would
have continued to fail, meaning this patch does nothing to solve the
root issues at all.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Fixes: 765976285a ("rtlwifi: fix a potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-13-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-26 12:06:55 +02:00
Ping-Ke Shih
c0aa320ac6 rtlwifi: 8821ae: upgrade PHY and RF parameters
[ Upstream commit 18fb0bedb5fc2fddc057dbe48b7360a6ffda34b3 ]

The signal strength of 5G is quite low, so user can't connect to an AP far
away. New parameters with new format and its parser are updated by the commit
84d26fda52 ("rtlwifi: Update 8821ae new phy parameters and its parser."), but
some parameters are missing. Use this commit to update to the novel parameters
that use new format.

Fixes: 84d26fda52 ("rtlwifi: Update 8821ae new phy parameters and its parser")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210219052607.7323-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14 09:50:39 +02:00
Ping-Ke Shih
513729aecb rtlwifi: rise completion at the last step of firmware callback
commit 4dfde294b9792dcf8615b55c58f093d544f472f0 upstream.

request_firmware_nowait() which schedules another work is used to load
firmware when USB is probing. If USB is unplugged before running the
firmware work, it goes disconnect ops, and then causes use-after-free.
Though we wait for completion of firmware work before freeing the hw,
firmware callback rises completion too early. So I move it to the
last step.

usb 5-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2
rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin
rtlwifi: Selected firmware is not available
==================================================================
BUG: KASAN: use-after-free in rtl_fw_do_work.cold+0x68/0x6a drivers/net/wireless/realtek/rtlwifi/core.c:93
Write of size 4 at addr ffff8881454cff50 by task kworker/0:6/7379

CPU: 0 PID: 7379 Comm: kworker/0:6 Not tainted 5.10.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events request_firmware_work_func
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xae/0x4c8 mm/kasan/report.c:385
 __kasan_report mm/kasan/report.c:545 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:562
 rtl_fw_do_work.cold+0x68/0x6a drivers/net/wireless/realtek/rtlwifi/core.c:93
 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1079
 process_one_work+0x933/0x1520 kernel/workqueue.c:2272
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418
 kthread+0x38c/0x460 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

The buggy address belongs to the page:
page:00000000f54435b3 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1454cf
flags: 0x200000000000000()
raw: 0200000000000000 0000000000000000 ffffea00051533c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881454cfe00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881454cfe80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881454cff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                 ^
 ffff8881454cff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881454d0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Reported-by: syzbot+65be4277f3c489293939@syzkaller.appspotmail.com
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201214053106.7748-1-pkshih@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-12 20:18:26 +01:00
Chris Chiu
8b2426c50f rtlwifi: rtl8192se: remove duplicated legacy_httxpowerdiff
The legacy_httxpowerdiff in rtl8192se is pretty much the same as
the legacy_ht_txpowerdiff for other chips. Use the same name to
keep the consistency.

Signed-off-by: Chris Chiu <chiu@endlessos.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201006035928.5566-1-chiu@endlessm.com
2020-10-08 13:47:14 +03:00
Sebastian Andrzej Siewior
920872e083 net: rtlwifi: Replace in_interrupt() for context detection
rtl_lps_enter() and rtl_lps_leave() are using in_interrupt() to detect
whether it is safe to acquire a mutex or if it is required to defer to a
workqueue.

The usage of in_interrupt() in drivers is phased out and Linus clearly
requested that code which changes behaviour depending on context should
either be seperated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

in_interrupt() also is only partially correct because it fails to chose the
correct code path when just preemption or interrupts are disabled.

Add an argument 'may_block' to both functions and adjust the callers to
pass the context information.

The following call chains were analyzed to be safe to block:

    rtl_watchdog_wq_callback()
      rlf_lps_leave/enter()

    rtl_op_suspend()
      rtl_lps_leave()

    rtl_op_bss_info_changed()
      rtl_lps_leave()

    rtl_op_sw_scan_start()
      rtl_lps_leave()

The following call chains were analyzed to be unsafe to block:

    _rtl_pci_interrupt()
      _rtl_pci_rx_interrupt()
	  rtl_lps_leave()

    _rtl_pci_interrupt()
      _rtl_pci_rx_interrupt()
        rtl_is_special_data()
	  rtl_lps_leave()

    _rtl_pci_interrupt()
      _rtl_pci_rx_interrupt()
        rtl_is_special_data()
	  setup_special_tx()
	    rtl_lps_leave()

    _rtl_pci_interrupt()
      _rtl_pci_tx_isr
        rtl_lps_leave()

      halbtc_leave_lps()
        rtl_lps_leave()

This leaves four callers of rtl_lps_enter/leave() where the analyzis
stopped dead in the maze of several nested pointer based callchains and
lack of rtlwifi hardware to debug this via tracing:

     halbtc_leave_lps(), halbtc_enter_lps(), halbtc_normal_lps(),
     halbtc_pre_normal_lps()

These four have been cautionally marked to be unable to block which is the
safe option, but the rtwifi wizards should be able to clarify that.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29 14:02:55 -07:00
Sebastian Andrzej Siewior
e741751bda net: rtlwifi: Remove in_interrupt() from debug macro
The usage of in_interrupt() in drivers in is phased out.

rtl_dbg() a printk based debug aid is using in_interrupt() in the
underlying C function _rtl_dbg_out() which is almost identical to
_rtl_dbg_print(). The only difference is the printout of in_interrupt().

The decoding of in_interrupt() as hexvalue is non-trivial and aside of
being phased out for driver usage the return value is just by chance the
masked preempt count value and not a boolean.

These home brewn printk debug aids are tedious to work with and provide
only minimal context.  They should be replaced by trace_printk() or a debug
tracepoint which automatically records all context information.

To make progress on the in_interrupt() cleanup, make rtl_dbg() use
_rtl_dbg_print() and remove _rtl_dbg_out().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29 14:02:55 -07:00
Sebastian Andrzej Siewior
a3b7b227f1 net: rtlwifi: Remove void* casts related to delayed work
INIT_DELAYED_WORK() takes two arguments: A pointer to the delayed work and
a function reference for the callback.

The rtl code casts all function references to (void *) because the
callbacks in use are not matching the required function signature. That's
error prone and bad pratice.

Some of the callback functions are also global, but only used in a single
file.

Clean the mess up by:

  - Adding the proper arguments to the callback functions and using them in
    the container_of() constructs correctly which removes the hideous
    container_of_dwork_rtl() macro as well.

  - Removing the type cast at the initializers

  - Making the unnecessary global functions static

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29 14:02:55 -07:00
Jason Yan
dd7a3a331f rtlwifi: rtl8723be: use true,false for bool variable large_cfo_hit
This addresses the following coccinelle warning:

drivers/net/wireless/realtek/rtlwifi/rtl8723be/dm.c:1155:27-47: WARNING:
Comparison of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8723be/dm.c:1156:3-23: WARNING:
Assignment of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8723be/dm.c:1159:3-23: WARNING:
Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200919074437.3459305-1-yanaijie@huawei.com
2020-09-22 10:18:38 +03:00
Jason Yan
ff4d1d726e rtlwifi: rtl8821ae: use true,false for bool variable large_cfo_hit
This addresses the following coccinelle warning:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:2680:27-47: WARNING:
Comparison of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:2683:3-23: WARNING:
Assignment of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:2686:3-23: WARNING:
Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200919074428.3459234-1-yanaijie@huawei.com
2020-09-22 10:18:10 +03:00
Jason Yan
a03efb41bb rtlwifi: rtl8192ee: use true,false for bool variable large_cfo_hit
This addresses the following coccinelle warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:721:27-47:
WARNING: Comparison of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:722:3-23: WARNING:
Assignment of 0/1 to bool variable
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:725:2-22: WARNING:
Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200919074412.3459163-1-yanaijie@huawei.com
2020-09-22 10:17:42 +03:00
Joe Perches
6c1d619135 rtlwifi: Use ffs in <foo>_phy_calculate_bit_shift
Remove the loop and use the generic ffs instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/e2ab424d24b74901bc0c39f0c60f75e871adf2ba.camel@perches.com
2020-09-22 10:16:41 +03:00
Zheng Bin
02686841d5 rtlwifi: rtl8723be: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c:861:6-35: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-10-zhengbin13@huawei.com
2020-09-21 16:02:50 +03:00
Zheng Bin
9dbde387e2 rtlwifi: rtl8192de: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192de/hw.c:566:14-20: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192de/hw.c:572:13-19: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192de/hw.c:581:14-20: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192de/hw.c:587:13-19: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-9-zhengbin13@huawei.com
2020-09-21 16:02:49 +03:00
Zheng Bin
d544707ae0 rtlwifi: rtl8192ce: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c:616:14-20: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c:621:13-19: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c:626:14-20: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c:631:13-19: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-8-zhengbin13@huawei.com
2020-09-21 16:02:48 +03:00
Zheng Bin
77205bc3db rtlwifi: rtl8192cu: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c:831:14-49: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-7-zhengbin13@huawei.com
2020-09-21 16:02:47 +03:00
Zheng Bin
07cc5f0345 rtlwifi: rtl8821ae: fix comparison to bool warning in phy.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:1816:5-13: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:1825:5-13: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:1839:5-13: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-6-zhengbin13@huawei.com
2020-09-21 16:02:45 +03:00
Zheng Bin
d87a8d4d5e rtlwifi: rtl8821ae: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c:1897:5-13: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-5-zhengbin13@huawei.com
2020-09-21 16:02:44 +03:00
Zheng Bin
03ce815939 rtlwifi: rtl8192cu: fix comparison to bool warning in mac.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:161:14-17: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:168:13-16: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:179:14-17: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:186:13-16: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-4-zhengbin13@huawei.com
2020-09-21 16:02:43 +03:00
Zheng Bin
4cff897cb2 rtlwifi: rtl8192c: fix comparison to bool warning in phy_common.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c:1106:14-18: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-3-zhengbin13@huawei.com
2020-09-21 16:02:42 +03:00
Zheng Bin
027a4c9c30 rtlwifi: rtl8192ee: fix comparison to bool warning in hw.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c:797:6-33: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-2-zhengbin13@huawei.com
2020-09-21 16:02:40 +03:00
Zheng Bin
f26506f06b rtlwifi: rtl8723ae: fix comparison pointer to bool warning in phy.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:191:5-13: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:205:5-13: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:211:5-13: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:625:5-30: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910141642.127006-4-zhengbin13@huawei.com
2020-09-16 09:12:11 +03:00
Zheng Bin
9d886ac439 rtlwifi: rtl8723ae: fix comparison pointer to bool warning in trx.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c:592:5-9: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/trx.c:633:5-9: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910141642.127006-3-zhengbin13@huawei.com
2020-09-16 09:12:09 +03:00
Zheng Bin
4eef91a8db rtlwifi: rtl8723ae: fix comparison pointer to bool warning in rf.c
Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/rf.c:52:5-22: WARNING: Comparison to bool
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/rf.c:482:6-14: WARNING: Comparison to bool

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910141642.127006-2-zhengbin13@huawei.com
2020-09-16 09:12:08 +03:00