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Author SHA1 Message Date
Larry Finger
8b144dedb9 rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
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
2021-12-20 21:04:49 +02:00
Kees Cook
69831173fc rtlwifi: rtl8192de: Style clean-ups
Clean up some style issues:
- Use ARRAY_SIZE() even though it's a u8 array.
- Remove redundant CHANNEL_MAX_NUMBER_2G define.
Additionally fix some dead code WARNs.

Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/lkml/57d0d1b6064342309f680f692192556c@realtek.com/
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211119192233.1021063-1-keescook@chromium.org
2021-11-29 12:47:07 +02:00
Christophe JAILLET
ff1cc2fa30 wireless: Remove redundant 'flush_workqueue()' calls
'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
- 	flush_workqueue(E);
	destroy_workqueue(E);

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/0855d51423578ad019c0264dad3fe47a2e8af9c7.1633849511.git.christophe.jaillet@wanadoo.fr
2021-10-13 09:22:19 +03:00
Colin Ian King
51fd5c6417 rtlwifi: rtl8192ee: Remove redundant initialization of variable version
The variable version is being initialized with a value that is
never read, it is being updated afterwards in both branches of
an if statement. The assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211007163722.20165-1-colin.king@canonical.com
2021-10-13 09:20:30 +03:00
Nathan Chancellor
533ccdae76 rtlwifi: rtl8192de: Fix initialization of place in _rtl92c_phy_get_rightchnlplace()
Clang warns:

drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c:901:6: warning:
variable 'place' is used uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]
        if (chnl > 14) {
            ^~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c:909:9: note:
uninitialized use occurs here
        return place;
               ^~~~~
drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c:901:2: note: remove
the 'if' if its condition is always true
        if (chnl > 14) {
        ^~~~~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c:899:10: note:
initialize the variable 'place' to silence this warning
        u8 place;
                ^
                 = '\0'
1 warning generated.

Commit 369956ae57 ("rtlwifi: rtl8192de: Remove redundant variable
initializations") removed the initialization of place but it appears
that this removal was in the wrong function.

_rtl92c_phy_get_rightchnlplace() returns place's value at the end of the
function so now if the if statement is false, place never gets
initialized. Add that initialization back to address the warning.

place's initialization is not necessary in
rtl92d_get_rightchnlplace_for_iqk() as place is only used within the if
statement so it can be removed, which is likely what was intended in the
first place.

Fixes: 369956ae57 ("rtlwifi: rtl8192de: Remove redundant variable initializations")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210823222014.764557-1-nathan@kernel.org
2021-08-29 10:28:32 +03:00
Colin Ian King
b05897ca8c rtlwifi: rtl8192de: make arrays static const, makes object smaller
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
2021-08-21 20:32:38 +03:00
Colin Ian King
369956ae57 rtlwifi: rtl8192de: Remove redundant variable initializations
The variables rtstatus and place are being initialized with a values
that are never read, the initializations are redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210803144949.79433-1-colin.king@canonical.com
2021-08-21 20:32:38 +03:00
Kees Cook
0d5e743db4 rtlwifi: rtl8192de: Fully initialize curvecount_val
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), memmove(), and memset(), avoid
intentionally writing across neighboring array fields.

The size argument to memset() is bytes, but the array element size
of curvecount_val is u32, so "CV_CURVE_CNT * 2" was only 1/4th of the
contents of curvecount_val. Adjust memset() to wipe full buffer size.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210617171317.3410722-1-keescook@chromium.org
2021-06-22 18:24:33 +03:00
Ding Senjie
03611cc526 rtlwifi: Fix spelling of 'download'
downlaod -> download

Signed-off-by: Ding Senjie <dingsenjie@yulong.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210521062734.21284-1-dingsenjie@163.com
2021-06-15 16:40:54 +03:00
Yang Li
a99086057e rtlwifi: Remove redundant assignments to ul_enc_algo
Variable ul_enc_algo is being initialized with a value that is never
read, it is being set again in the following switch statements in
all of the case and default paths. Hence the unitialization is
redundant and can be removed.

Clean up clang warning:

drivers/net/wireless/realtek/rtlwifi/cam.c:170:6: warning: Value stored
to 'ul_enc_algo' during its initialization is never read
[clang-analyzer-deadcode.DeadStores]

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1621303199-1542-1-git-send-email-yang.lee@linux.alibaba.com
2021-06-15 16:39:55 +03:00
Colin Ian King
03a1b938cf rtlwifi: rtl8723ae: remove redundant initialization of variable rtstatus
The variable rtstatus is being initialized with a value that is never
read, it is being updated later on. The assignment is redundant and
can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210513122410.59204-1-colin.king@canonical.com
2021-06-15 16:39:37 +03:00
Zhen Lei
d56b69c4fb rtlwifi: btcoex: 21a 2ant: Delete several duplicate condition branch codes
The statements of the "if (max_interval == 3)" branch are the same as
those of the "else" branch. Delete them to simplify the code.

No functional change.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210510082237.3315-1-thunder.leizhen@huawei.com
2021-06-15 16:38:05 +03:00
Ping-Ke Shih
924599d407 rtlwifi: 8821a: btcoexist: add comments to explain why if-else branches are identical
The coexistence programmers preserve the same code of branches
intentionally to fine tune performance easier, because bandwidth and RSSI
strength are highly related to coexistence performance. The basic rule of
performance tuning is to assign most time slot to BT for realtime
application, and WiFi uses remaining time slot but don't lower than low
bound.

Reported-by: Inigo Huguet <ihuguet@redhat.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506013738.5943-1-pkshih@realtek.com
2021-06-15 16:36:44 +03:00
Yang Shen
9a0fb9502f rtlwifi: Fix wrong function name in comments
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:124: warning: expecting prototype for writeLLT(). Prototype was for rtl92c_llt_write() instead
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:154: warning: expecting prototype for rtl92c_init_LLT_table(). Prototype was for rtl92c_init_llt_table() instead

Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yang Shen <shenyang39@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210517050141.61488-9-shenyang39@huawei.com
2021-06-15 16:10:46 +03:00
Greg Kroah-Hartman
30b0e0ee9d net: rtlwifi: properly check for alloc_workqueue() failure
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>
2021-05-13 17:30:26 +02:00
Greg Kroah-Hartman
68c5634c4a Revert "rtlwifi: fix a potential NULL pointer dereference"
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>
2021-05-13 17:30:24 +02:00
Ping-Ke Shih
afda33499b rtlwifi: implement set_tim by update beacon content
Once beacon content is changed, we update the content to wifi card by
send_beacon_frame(). Then, STA with PS can wake up properly to receive its
packets.

Since we update beacon content to PCI wifi devices every beacon interval,
the only one usb device, 8192CU, needs to update beacon content when
mac80211 calling set_tim.

Reported-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210419065956.6085-1-pkshih@realtek.com
2021-04-21 12:39:33 +03:00
Guobin Huang
e9642be26a rtlwifi: rtl8192de: Use DEFINE_SPINLOCK() for spinlock
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1617711406-49649-1-git-send-email-huangguobin4@huawei.com
2021-04-17 20:34:12 +03:00
Christophe JAILLET
1186006ade rtlwifi: Simplify locking of a skb list accesses
The 'c2hcmd_lock' spinlock is only used to protect some __skb_queue_tail()
and __skb_dequeue() calls.
Use the lock provided in the skb itself and call skb_queue_tail() and
skb_dequeue(). These functions already include the correct locking.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/99cf8894fd52202cb7ce2ec6e3200eef400bc071.1617609346.git.christophe.jaillet@wanadoo.fr
2021-04-17 20:32:04 +03:00
Christophe JAILLET
987e9bcdd0 rtlwifi: remove rtl_get_tid_h
'rtl_get_tid_h()' is the same as 'ieee80211_get_tid()'.
So this function can be removed to save a line of code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/db340a67a95c119e4f9ba8fa99aea1c73d0dcfc9.1617383263.git.christophe.jaillet@wanadoo.fr
2021-04-17 20:30:45 +03:00
Yang Li
8e04a06530 rtlwifi: rtl8188ee: remove redundant assignment of variable rtlpriv->btcoexist.reg_bt_sco
Assigning value "3" to "rtlpriv->btcoexist.reg_bt_sco" here, but that
stored value is overwritten before it can be used.

Coverity reports this problem as
CWE563: A value assigned to a variable is never used.
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c:
rtl8188ee_bt_reg_init

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1617182023-110950-1-git-send-email-yang.lee@linux.alibaba.com
2021-04-17 20:30:01 +03:00
Colin Ian King
87431bc1f0 rtlwifi: remove redundant assignment to variable err
Variable err is assigned -ENODEV followed by an error return path
via label error_out that does not access the variable and returns
with the -ENODEV error return code. The assignment to err is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210327230014.25554-1-colin.king@canonical.com
2021-04-17 20:29:16 +03:00
Bhaskar Chowdhury
2377b1c49d rtlwifi: Few mundane typo fixes
s/resovle/resolve/
s/broadcase/broadcast/
s/sytem/system/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210320194426.21621-1-unixbhaskar@gmail.com
2021-04-17 20:28:26 +03:00
Ping-Ke Shih
18fb0bedb5 rtlwifi: 8821ae: upgrade PHY and RF parameters
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
2021-04-17 20:26:39 +03:00
Jiapeng Chong
8e79106a7d rtlwifi: rtl8821ae: phy: Simplify bool comparison
Fix the following coccicheck warning:

./drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:3853:7-17:
WARNING: Comparison of 0/1 to bool variable.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1612840381-109714-1-git-send-email-jiapeng.chong@linux.alibaba.com
2021-02-10 09:39:35 +02:00
Jiapeng Chong
15085446c1 rtlwifi: rtl8192se: Simplify bool comparison
Fix the follow coccicheck warnings:

./drivers/net/wireless/realtek/rtlwifi/rtl8192se/hw.c:2305:6-27:
WARNING: Comparison of 0/1 to bool variable.

./drivers/net/wireless/realtek/rtlwifi/rtl8192se/hw.c:1376:5-26:
WARNING: Comparison of 0/1 to bool variable.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1612839264-85773-1-git-send-email-jiapeng.chong@linux.alibaba.com
2021-02-10 09:38:42 +02:00
Colin Ian King
711fa16f1d rtlwifi: rtl8192se: remove redundant initialization of variable rtstatus
The variable rtstatu is being initialized with a value that is never
read and it is being updated later with a new value.  The initialization
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210128171048.644669-1-colin.king@canonical.com
2021-02-08 12:39:07 +02:00
Emil Renner Berthing
ca04217add rtlwifi: use tasklet_setup to initialize rx_work_tasklet
In commit d3ccc14dfe most of the tasklets in this driver was
updated to the new API. However for the rx_work_tasklet only the
type of the callback was changed from
  void _rtl_rx_work(unsigned long data)
to
  void _rtl_rx_work(struct tasklet_struct *t).

The initialization of rx_work_tasklet was still open-coded and the
function pointer just cast into the old type, and hence nothing sets
rx_work_tasklet.use_callback = true and the callback was still called as

  t->func(t->data);

with uninitialized/zero t->data.

Commit 6b8c7574a5 changed the casting of _rtl_rx_work a bit and
initialized t->data to a pointer to the tasklet cast to an unsigned
long.

This way calling t->func(t->data) might actually work through all the
casting, but it still doesn't update the code to use the new tasklet
API.

Let's use the new tasklet_setup to initialize rx_work_tasklet properly
and set rx_work_tasklet.use_callback = true so that the callback is
called as

  t->callback(t);

without all the casting.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210126171550.3066-1-kernel@esmil.dk
2021-02-08 12:37:49 +02:00
Aditya Srivastava
9264cabc12 rtlwifi: rtl8821ae: fix bool comparison in expressions
There are certain conditional expressions in rtl8821ae, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c,
"if (rtlefuse->autoload_failflag == false)" can be replaced with
"if (!rtlefuse->autoload_failflag)"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-6-yashsri421@gmail.com
2021-01-25 16:21:10 +02:00
Aditya Srivastava
33ae4623d5 rtlwifi: rtl8192se: fix bool comparison in expressions
There are certain conditional expressions in rtl8192se, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-5-yashsri421@gmail.com
2021-01-25 16:21:08 +02:00
Aditya Srivastava
64338f0dfd rtlwifi: rtl8188ee: fix bool comparison in expressions
There are certain conditional expressions in rtl8188ee, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/rtl8188ee/dm.c,
"if (mac->act_scanning == true)" can be replaced with
"if (mac->act_scanning)"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-4-yashsri421@gmail.com
2021-01-25 16:21:07 +02:00
Aditya Srivastava
f7c76283fc rtlwifi: rtl8192c-common: fix bool comparison in expressions
There are certain conditional expressions in rtl8192c-common, where a
boolean variable is compared with true/false, in forms such as
(foo == true) or (false != bar), which does not comply with checkpatch.pl
(CHECK: BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/rtl8192c/dm_common.c,
"else if (initialized == false) {" can be replaced with
"else if (!initialized) {"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-3-yashsri421@gmail.com
2021-01-25 16:21:05 +02:00
Aditya Srivastava
d8cbaa3de4 rtlwifi: rtl_pci: fix bool comparison in expressions
There are certain conditional expressions in rtl_pci, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/ps.c,
"if (find_p2p_ie == true)" can be replaced with "if (find_p2p_ie)"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-2-yashsri421@gmail.com
2021-01-25 16:21:01 +02:00
Ping-Ke Shih
4dfde294b9 rtlwifi: rise completion at the last step of firmware callback
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
2020-12-17 18:37:47 +02:00
Ping-Ke Shih
3f79e54159 rtlwifi: rtl8192de: fix ofdm power compensation
ofdm_index[] is used to indicate how many power compensation is needed to
current thermal value. For internal PA module or 2.4G band, the min_index
is different from other cases.

This issue originally is reported by Dan. He found the size of ofdm_index[]
is 2, but access index 'i' may be equal to 2 if 'rf' is 2 in case of
'is2t'.

In fact, the chunk of code is added to wrong place, so move it back to
proper place, and then power compensation and buffer overflow are fixed.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201207031903.7599-1-pkshih@realtek.com
2020-12-09 09:22:37 +02:00
Jia-Ju Bai
8b2c13b2e5 rtlwifi: rtl8723ae: avoid accessing the data mapped to streaming DMA
In rtl8723e_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 531:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 534, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 535:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015218.12220-1-baijiaju1990@gmail.com
2020-11-24 17:06:38 +02:00
Jia-Ju Bai
ff76548338 rtlwifi: rtl8192de: avoid accessing the data mapped to streaming DMA
In rtl92de_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 667:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 669, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 670:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015205.12162-1-baijiaju1990@gmail.com
2020-11-24 17:06:37 +02:00
Jia-Ju Bai
c7ba0ea0df rtlwifi: rtl8192ce: avoid accessing the data mapped to streaming DMA
In rtl92ce_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 530:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 533, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 534:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015151.12110-1-baijiaju1990@gmail.com
2020-11-24 17:06:35 +02:00
Jia-Ju Bai
6df3c293d2 rtlwifi: rtl8188ee: avoid accessing the data mapped to streaming DMA
In rtl88ee_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 677:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 680, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 681:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015127.12033-1-baijiaju1990@gmail.com
2020-11-24 17:06:34 +02:00
Kaixu Xia
0409d504aa rtlwifi: rtl8192de: remove the useless value assignment
The variable u4tmp is overwritten by the following call and the assignment
is useless, so remove it.

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605332735-9648-1-git-send-email-kaixuxia@tencent.com
2020-11-24 17:02:22 +02:00
Wang Qing
dd90fc4630 rtlwifi: fix spelling typo of workaround
workarould -> workaround

Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1604738439-24794-1-git-send-email-wangqing@vivo.com
2020-11-10 20:56:34 +02:00
Lee Jones
398d816a64 rtlwifi: rtl8821ae: Place braces around empty if() body
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c: In function ‘_rtl8812ae_phy_get_txpower_limit’:
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:2453:3: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-35-lee.jones@linaro.org
2020-11-07 18:14:48 +02:00
Lee Jones
29c6099a38 rtlwifi: rtl8821ae: phy: Remove a couple of unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c: In function ‘rtl8821ae_phy_switch_wirelessband’:
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:597:14: warning: variable ‘rxpath’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:597:6: warning: variable ‘txpath’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-34-lee.jones@linaro.org
2020-11-07 18:14:46 +02:00
Lee Jones
44ec6d9df9 rtlwifi: rtl8723be: Remove set but unused variable 'cck_highpwr'
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723be/trx.c: In function ‘_rtl8723be_query_rxphystatus’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/trx.c:53:6: warning: variable ‘cck_highpwr’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-33-lee.jones@linaro.org
2020-11-07 18:14:45 +02:00
Lee Jones
28f8118762 rtlwifi: halbtc8821a2ant: Remove a bunch of unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_bt_inquiry’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_wifi_idle_process’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1519:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1519:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2990:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_hid_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3277:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-31-lee.jones@linaro.org
2020-11-07 18:14:44 +02:00
Lee Jones
6c75eab041 rtlwifi: rtl8188ee: Remove set but unused variable 'reg_ea4'
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c: In function ‘_rtl88e_phy_path_a_iqk’:
 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c:1351:33: warning: variable ‘reg_ea4’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-30-lee.jones@linaro.org
2020-11-07 18:14:42 +02:00
Lee Jones
0a43d993ee rtlwifi: rtl8723be: Remove set but unused variable 'lc_cal'
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c: In function ‘_rtl8723be_phy_lc_calibrate’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:2181:36: warning: variable ‘lc_cal’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-29-lee.jones@linaro.org
2020-11-07 18:14:41 +02:00
Lee Jones
0c73dab72f rtlwifi: halbtc8821a1ant: Remove set but unused variable 'wifi_rssi_state'
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c: In function ‘btc8821a1ant_run_coexist_mechanism’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1904:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-28-lee.jones@linaro.org
2020-11-07 18:14:39 +02:00
Lee Jones
87b08d1ecb rtlwifi: phy: Remove set but unused variable 'bbvalue'
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c: In function ‘_rtl8723e_phy_iq_calibrate’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:1150:6: warning: variable ‘bbvalue’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-27-lee.jones@linaro.org
2020-11-07 18:14:38 +02:00
Lee Jones
bb053d0251 rtlwifi: halbtc8723b2ant: Remove a bunch of set but unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_wifi_idle_process’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:1631:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:1631:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_sco’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2767:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2810:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2855:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_a2dp_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2929:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2976:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3028:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3028:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3066:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr_hid’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3121:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid_a2dp_pan_edr’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3185:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3244:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-26-lee.jones@linaro.org
2020-11-07 18:14:37 +02:00