Arnd Bergmann <arnd@xxxxxxxx> writes: > gcc-10 warns about accesses inside of a zero-length array: > > drivers/net/wireless/ath/wil6210/cfg80211.c: In function 'wil_cfg80211_scan': > drivers/net/wireless/ath/wil6210/cfg80211.c:970:23: error: array > subscript 255 is outside the bounds of an interior zero-length array > 'struct <anonymous>[0]' [-Werror=zero-length-bounds] > 970 | cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1; > | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ > In file included from drivers/net/wireless/ath/wil6210/wil6210.h:17, > from drivers/net/wireless/ath/wil6210/cfg80211.c:11: > drivers/net/wireless/ath/wil6210/wmi.h:477:4: note: while referencing 'channel_list' > 477 | } channel_list[0]; > | ^~~~~~~~~~~~ > > Turn this into a flexible array to avoid the warning. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > Gustavo has a patch to do it for all arrays in this file, and that > should get merged as well, but this simpler patch is sufficient > to shut up the warning. I don't see Gustavo's patch yet so I'll take this one first. -- https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
