Zero-length arrays as fake flexible arrays are deprecated and we are moving towards adopting C99 flexible-array members instead. Address the following warnings found with GCC-13 and -fstrict-flex-arrays=3 enabled: drivers/net/wireless/ath/carl9170/tx.c:702:61: warning: array subscript i is outside array bounds of ‘const struct _carl9170_tx_status[0]’ [-Warray-bounds=] drivers/net/wireless/ath/carl9170/tx.c:701:65: warning: array subscript i is outside array bounds of ‘const struct _carl9170_tx_status[0]’ [-Warray-bounds=] This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. Link: https://github.com/KSPP/linux/issues/21 Link: https://github.com/KSPP/linux/issues/267 Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1] Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> --- drivers/net/wireless/ath/carl9170/fwcmd.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/carl9170/fwcmd.h b/drivers/net/wireless/ath/carl9170/fwcmd.h index ff4b3b50250c..e5bcc364f088 100644 --- a/drivers/net/wireless/ath/carl9170/fwcmd.h +++ b/drivers/net/wireless/ath/carl9170/fwcmd.h @@ -320,9 +320,9 @@ struct carl9170_rsp { struct carl9170_u32_list rreg_res; struct carl9170_u32_list echo; #ifdef __CARL9170FW__ - struct carl9170_tx_status tx_status[0]; + DECLARE_FLEX_ARRAY(struct carl9170_tx_status, tx_status); #endif /* __CARL9170FW__ */ - struct _carl9170_tx_status _tx_status[0]; + DECLARE_FLEX_ARRAY(struct _carl9170_tx_status, _tx_status); struct carl9170_gpio gpio; struct carl9170_tsf_rsp tsf; struct carl9170_psm psm; -- 2.34.1
