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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>
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kfree(..) on a NULL pointer is a no-op; the null test here is redundant.
Detected by coccicheck.
Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Smatch lists the following:
CHECK drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:470 rtw_cfg80211_ibss_indicate_connect() error: we previously assumed 'scanned' could be null (see line 466)
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:942 rtw_cfg80211_set_encryption() warn: inconsistent indenting
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:955 rtw_cfg80211_set_encryption() error: buffer overflow 'psecuritypriv->dot11DefKey' 4 <= 4
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:1017 rtw_cfg80211_set_encryption() error: buffer overflow 'padapter->securitypriv.dot118021XGrpKey' 5 <= 5
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:1216 cfg80211_rtw_set_default_key() warn: inconsistent indenting
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:2498 rtw_cfg80211_monitor_if_xmit_entry() error: we previously assumed 'skb' could be null (see line 2495)
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:2850 cfg80211_rtw_start_ap() warn: if statement not indented
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:2860 cfg80211_rtw_start_ap() warn: if statement not indented
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:3417 rtw_cfg80211_preinit_wiphy() warn: inconsistent indenting
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:3547 rtw_wdev_alloc() info: ignoring unreachable code.
The indenting warnings were fixed by simple white space changes.
The section where 'scanned' could be null required an immediate exit from
the routine at that point. A similar fix was required where 'skb' could be null.
The two buffer overflow errors were caused by off-by-one errors. While
locating these problems, another one was found in os_dep/ioctl_linux.c.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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>
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Arnd Bergmann
Aishwarya Pant
Larry Finger
Hans de Goede