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[ Upstream commitb002760f87] Commitdf8fc4e934("kbuild: Enable -fstrict-flex-arrays=3") triggers a warning for fortified memset(): In function 'fortify_memset_chk', inlined from 'irdma_clr_wqes' at drivers/infiniband/hw/irdma/uk.c:103:4: include/linux/fortify-string.h:493:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning] 493 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The problem here isthat the inner array only has four 8-byte elements, so clearing 4096 bytes overflows that. As this structure is part of an outer array, change the code to pass a pointer to the irdma_qp_quanta instead, and change the size argument for readability, matching the comment above it. Fixes:551c46edc7("RDMA/irdma: Add user/kernel shared libraries") Link: https://lore.kernel.org/r/20230523111859.2197825-1-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>