staging: rtl8723bs: remove rf type branching (fourth patch)

remove all function calls to rtw_get_hw_reg made to
read HW_VAR_RF_TYPE and get value of rt_type, which
is always 1T1R. Clean up code on removal sites,
keeping 1T1R code unconditionally.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/8ca2f788c42d81b9cb4dbc46e23c7549dc27d081.1628329348.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused macros

remove unused macros detected by -Wunused-macros
gcc option.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/20210801134629.23433-1-fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused debug variables declarations and initialization

remove unused debug variables extern declarations
and containing #ifndef block.

remove initialization as well.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/d566a6eb49949c1c80df286056b9df6114c8cc97.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused rf_reg_dump() function argument

remove unused function argument void *sel from rf_reg_dump.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/32d99e0a094cc59a35788c468dd3e20b486c9e20.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused bb_reg_dump() function argument

remove unused function argument void *sel from bb_reg_dump.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/62bfb844bc77818ca0595b369e64eca3b8872470.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused mac_reg_dump() function argument

remove unused function argument void *sel from mac_reg_dump.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/2ae03ee765c861d1fd4237af7b8d11a918be0d76.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: add two functions to improve register dump in core/rtw_debug.c

Beautify register dump by adding two functions printing
four register values per line. This is necessary after
old macro replacement with netdev_dbg(), the former
wrapped a raw printk, the latter
prints lots of driver information overhead per line
for each call. So avoid this noisy behaviour by dumping
four values on each line.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/0f3300e6b07f811c0d3fc9c6dd46e5270dfb7a54.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: replace DBG_871X_SEL log macro with netdev_dbg()

replace DBG_871X_SEL log macro with the net device driver
recommended netdev_dbg().

This macro by default does a raw printk, and the alternative
behaviour, never triggered is a seq_print() call.

So replace with netdev_dbg().

The operation has been done with the following semantic patch
script:

@@
expression sel;
expression list args;
identifier padapter;
identifier func;
@@

func(..., struct adapter *padapter, ...) {
<...
- DBG_871X_SEL(sel, args);
+ netdev_dbg(padapter->pnetdev, args);
...>

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/9e6a1e4dc8962bfd58375be98619c76e8e28febe.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused log function

remove unused sd_f0_reg_dump() function.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/397a4082fa2a49c67ac7d6869284334d3fa7bea6.1619254603.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: replace DBG_871X_SEL_NL with netdev_dbg()

replace DGB_871X_SEL_NL macro with netdev_dbg().

DBG_871X_SEL_NL macro expands to a raw prink call or a
seq_printf if selected stream _is not_ a local
debug symbol set to null.
This second scenario never occurs so replace
all macro usages with netdev_dbg().

This is done with the following coccinelle script:

@@
expression sel;
expression list args;
identifier padapter;
identifier func;
@@

func(..., struct adapter *padapter, ...) {
<...
- DBG_871X_SEL_NL(sel, args);
+ netdev_dbg(padapter->pnetdev, args);
...>
}

fix by hand one coccinelle output newline issue

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/9d4597097d75a1900c65e4a15077eb0c8bce1c9b.1618401896.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove two unused functions

remove dump_drv_version() and dump_log_level() function
definitions and prototypes. Those functions are unused,
and add unnecessary wrap level to log calls.

They wrap DBG_871X_SEL_NL which will be replaced by
netdev_dbg() with coccinelle script application.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/2e8dd88c053735daed95701140b2f03b4cfe2a2e.1618325614.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused code blocks guarded by DEBUG_RTL871X

remove unused code blocks guarded by never set DEBUG_RTL871X

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/c7b590b7ae7fad08cd913462ab385db9230ede4d.1618064274.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove debugging information exposed via procfs

The procfs provides many useful information for debugging, but it may be
too much for normal usage, routines like proc_get_sec_info() reports
various security related information.

So let's remove it.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20190813042426.13733-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove rtw_btcoex_DisplayBtCoexInfo()

Remove function rtw_btcoex_DisplayBtCoexInfo as all it does is call
hal_btcoex_DisplayBtCoexInfo.
Modify call site accordingly.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190702070132.6997-8-nishkadg.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove function rtw_btcoex_GetDBG()

Remove function rtw_btcoex_GetDBG as all it does is call
hal_btcoex_GetDBG.
Modify call site accordingly.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190702070132.6997-7-nishkadg.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Remove function rtw_btcoex_SetDBG()

Remove function rtw_btcoex_SetDBG as all it does is call
hal_btcoex_setDBG.
Modify call sites accordingly.
Include the header file for hal_btcoex in the file that now calls
hal_btcoex_SetDBG instead of rtw_btcoex_SetDBG.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190702070132.6997-6-nishkadg.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Fix checkpatch.pl warnings

This patch resolves coding style brace warning and constant on right warning.
WARNING: Comparisons should place the constant on the right side of the test
WARNING: braces {} are not necessary for single statement blocks
CHECK: Comparison to NULL could be written "!pbuf"

Signed-off-by: Vandana BN <bnvandana@gmail.com>
------
v2- Edited commit message and subject
v3- Edited commit message
v4- changed NULL check to use !pbuf
------

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: core: Fix a comparison warning.

Move the constant to the right side of comparison to get rid of
checkpatch warning.

Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: rtl8723bs: Fix code style issue in rtl8723bs driver

Add space between 'else' and '{' to solve code style issue
in all the files for rtl8723bs driver.

Signed-off-by: Hardik Singh Rathore <hardiksingh.k@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: fix spelling mistake "toogle" -> "toggle"

Trivial fix to spelling mistake in struct field name

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Replace license boilerplate with SPDX identifiers

This satisfies a checkpatch.pl warning and is the preferred method for
notating the license due to its lack of ambiguity.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: rename camelcase bAcceptAddbaReq

bAcceptAddbaReq uses camelcase which is not according to Linux kernel
coding style.
There is a 'bAcceptAddbaReq' field both in struct mlme_ext_info and
in struct registry_priv.Rename both of them.

Signed-off-by: Aastha Gupta <aastha.gupta4104@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: rework debug configuration handling

I ran into this warning during randconfig testing:

drivers/staging/rtl8723bs/os_dep/rtw_proc.c: In function 'rtw_adapter_proc_deinit':
drivers/staging/rtl8723bs/os_dep/rtw_proc.c:738:25: error: unused variable 'drv_proc' [-Werror=unused-variable]
drivers/staging/rtl8723bs/os_dep/rtw_proc.c: In function 'rtw_adapter_proc_replace':
drivers/staging/rtl8723bs/os_dep/rtw_proc.c:762:25: error: unused variable 'drv_proc' [-Werror=unused-variable]

The problem is that the code procfs code gets built even when CONFIG_PROC_FS
is disabled, but some functions are turned into empty stubs then. This
is easily addressed by adding an #ifdef around the definition of the
CONFIG_PROC_DEBUG macro.

However, I could not bear looking at the macro name that clashes with the
Kconfig name space, so I also renamed it to simply PROC_DEBUG, along with
the other rtl8723bs specific CONFIG_DEBUG_* macros that I renamed the same
way. This is consistent with how we handle the same checks in the non-staging
rtlwifi driver.

As the code path for !CONFIG_PROC_DEBUG had not been tested properly, it
turned out to be incorrect and requires adding 'static inline' annotations
for the stub handlers, and moving some variables around.

Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove redundant comparisons of unsigned ints with >= 0

The comparison of mode >= 0 is redundant as mode is a u32 and this
is always true. Remove this redundant code.

Detected with CoverityScan ("Unsigned compared against 0")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Fix possible usage of NULL pointer in core/rtw_debug.c

Smatch reports the following:

CHECK drivers/staging/rtl8723bs/core/rtw_debug.c
drivers/staging/rtl8723bs/core/rtw_debug.c:454 proc_get_survey_info() error: we previously assumed 'phead' could be null (see line 453)
drivers/staging/rtl8723bs/core/rtw_debug.c:455 proc_get_survey_info() warn: variable dereferenced before check 'phead' (see line 454)

In the code, there are two successive calls to get_head(). The second
is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: Add rtl8723bs sdio wifi driver

The rtl8723bs is found on quite a few systems used by Linux users,
such as on Atom systems (Intel Computestick and various other
Atom based devices) and on many (budget) ARM boards such as
the CHIP.

The plan moving forward with this is for the new clean,
written from scratch, rtl8xxxu driver to eventually gain
support for sdio devices. But there is no clear timeline
for that, so lets add this driver included in staging for now.

Cc: Bastien Nocera <hadess@hadess.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <jes.sorensen@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>