Messages in this thread | | | Date | Thu, 20 Apr 2023 16:04:14 +0200 | From | Simon Horman <> | Subject | Re: [PATCH] wireless: ath: work around false-positive stringop-overread warning |
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On Mon, Apr 17, 2023 at 10:54:20PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@arndb.de> > > In a rare arm64 randconfig build, I got multiple warnings for ath11k > and ath12k: > > In function 'ath11k_peer_assoc_h_ht', > inlined from 'ath11k_peer_assoc_prepare' at drivers/net/wireless/ath/ath11k/mac.c:2665:2: > drivers/net/wireless/ath/ath11k/mac.c:1709:13: error: 'ath11k_peer_assoc_h_ht_masked' reading 10 bytes from a region of size 0 [-Werror=stringop-overread] > 1709 | if (ath11k_peer_assoc_h_ht_masked(ht_mcs_mask)) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > This happens whenever gcc-13 fails to inline one of the functions > that take a fixed-length array argument but gets passed a pointer. > > Change these functions to all take a regular pointer argument > instead. > > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Note: I was not able to reproduce the problem described above.
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