On Fri, Mar 17, 2023 at 10:59:48AM -0600, Gustavo A. R. Silva wrote: > Zero-length arrays as fake flexible arrays are deprecated and we are > moving towards adopting C99 flexible-array members instead. > > Address the following warning found with GCC-13 and > -fstrict-flex-arrays=3 enabled: > CC drivers/target/target_core_user.o > drivers/target/target_core_user.c: In function ‘queue_cmd_ring’: > drivers/target/target_core_user.c:1096:15: warning: array subscript 0 is outside array bounds of ‘struct iovec[0]’ [-Warray-bounds=] > 1096 | iov = &entry->req.iov[0]; > | ^~~~~~~~~~~~~~~~~~ > In file included from drivers/target/target_core_user.c:31: > ./include/uapi/linux/target_core_user.h:122:38: note: while referencing ‘iov’ > 122 | struct iovec iov[0]; > | ^~~ > > 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/270 > Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1] > Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
