linux-kernel - drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:116:6-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) (fwd)

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Date:   Wed, 6 Dec 2023 14:04:59 +0100 (CET)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Wright Feng <wright.feng@...ress.com>,
        Kalle Valo <kvalo@...nel.org>,
        Chi-hsien Lin <chi-hsien.lin@...ress.com>,
        Ian Lin <ian.lin@...ineon.com>
cc:     linux-kernel@...r.kernel.org, oe-kbuild-all@...ts.linux.dev
Subject: drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:116:6-9:
 WARNING use flexible-array member instead
 (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
 (fwd)

Hello,

Please check on whether the array of size 1 is supposed to be a flexible
array, ie [].

julia

---------- Forwarded message ----------
Date: Wed, 6 Dec 2023 20:18:15 +0800
From: kernel test robot <lkp@...el.com>
To: oe-kbuild@...ts.linux.dev
Cc: lkp@...el.com, Julia Lawall <julia.lawall@...ia.fr>
Subject: drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:116:6-9:
    WARNING use flexible-array member instead
    (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-
    and-one-element-arrays)

BCC: lkp@...el.com
CC: oe-kbuild-all@...ts.linux.dev
CC: linux-kernel@...r.kernel.org
TO: Wright Feng <wright.feng@...ress.com>
CC: Kalle Valo <kvalo@...nel.org>
CC: "Chi-hsien Lin" <chi-hsien.lin@...ress.com>
CC: Ian Lin <ian.lin@...ineon.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bee0e7762ad2c6025b9f5245c040fcc36ef2bde8
commit: 6c04deae1438e5df59fc4848795248fc34961f51 brcmfmac: Add dump_survey cfg80211 ops for HostApd AutoChannelSelection
date:   1 year, 2 months ago
:::::: branch date: 2 days ago
:::::: commit date: 1 year, 2 months ago
config: csky-randconfig-r053-20231201 (https://download.01.org/0day-ci/archive/20231206/202312062022.N0mzFcPn-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231206/202312062022.N0mzFcPn-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@...el.com>
| Reported-by: Julia Lawall <julia.lawall@...ia.fr>
| Closes: https://lore.kernel.org/r/202312062022.N0mzFcPn-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:116:6-9: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

vim +116 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c

6c04deae1438e5 Wright Feng 2022-09-28  112
6c04deae1438e5 Wright Feng 2022-09-28  113  struct cca_stats_n_flags {
6c04deae1438e5 Wright Feng 2022-09-28  114  	u32 msrmnt_time; /* Time for Measurement (msec) */
6c04deae1438e5 Wright Feng 2022-09-28  115  	u32 msrmnt_done; /* flag set when measurement complete */
6c04deae1438e5 Wright Feng 2022-09-28 @116  	char buf[1];
6c04deae1438e5 Wright Feng 2022-09-28  117  };
6c04deae1438e5 Wright Feng 2022-09-28  118

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki