[arm-platforms:kvm-arm64/mmu-pgt 773/874] drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h:123:16: warning: 'txchain' is used uninitialized

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/mmu-pgt
head:   1ed29f79e7c6441ef29c25a43d7c82d91e884dcc
commit: e529bcaa17060f516d1e4f345ea460ea206317d1 [773/874] [brcmfmac] Compute number of available antennas and set it in wiphy structure.
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240518/202405181803.0kfJ27Ki-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240518/202405181803.0kfJ27Ki-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405181803.0kfJ27Ki-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:30:
   In function 'brcmf_fil_iovar_int_get',
       inlined from 'brcmf_setup_wiphybands' at drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:7359:8:
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h:123:16: warning: 'txchain' is used uninitialized [-Wuninitialized]
     123 |         __le32 data_le = cpu_to_le32(*data);
         |                ^~~~~~~
   drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c: In function 'brcmf_setup_wiphybands':
   drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:7316:13: note: 'txchain' was declared here
    7316 |         u32 txchain;
         |             ^~~~~~~


vim +/txchain +123 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h

31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  108  
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  109  s32 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, const char *name,
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  110  			     const void *data, u32 len);
e7191182adc51c drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Hector Martin    2022-02-01  111  s32 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, const char *name, void *data,
81f5dcb8083077 drivers/net/wireless/brcm80211/brcmfmac/fwil.h          Hante Meuleman   2012-10-22  112  			     u32 len);
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  113  static inline
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  114  s32 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, const char *name, u32 data)
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  115  {
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  116  	__le32 data_le = cpu_to_le32(data);
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  117  
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  118  	return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  119  }
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  120  static inline
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  121  s32 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, const char *name, u32 *data)
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  122  {
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03 @123  	__le32 data_le = cpu_to_le32(*data);
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  124  	s32 err;
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  125  
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  126  	err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  127  	if (err == 0)
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  128  		*data = le32_to_cpu(data_le);
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  129  	return err;
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  130  }
31343230abb168 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h Arend van Spriel 2024-01-03  131  

:::::: The code at line 123 was first introduced by commit
:::::: 31343230abb1683e8afb254e6b13a7a7fd01fcac wifi: brcmfmac: export firmware interface functions

:::::: TO: Arend van Spriel <arend.vanspriel at broadcom.com>
:::::: CC: Kalle Valo <kvalo at kernel.org>

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