Not sure if below patch also help to solve the issue you met on power arch, Looks like the error is same: "writing 1 byte into a region of size 0" would you help to check?commit 1b0f3a18145468c309bb5a8cb98a8aa29af059e7 Author: Ferruh Yigit <[email protected]> Date: Fri Oct 29 11:37:01 2021 +0100 net/i40e: fix build for 32-bit Got error with: gcc 11.2.1 "cc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)" Build error: In function 'i40e_flow_parse_fdir_pattern', inlined from 'i40e_flow_parse_fdir_filter' at ../drivers/net/i40e/i40e_flow.c:3274:8: ../drivers/net/i40e/i40e_flow.c:3052:69: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=] 3052 | filter->input.flow_ext.flexbytes[j] = | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ 3053 | raw_spec->pattern[i]; | ~~~~~~~~~~~~~~~~~~~~ In file included from ../drivers/net/i40e/i40e_flow.c:25: ../drivers/net/i40e/i40e_flow.c: In function 'i40e_flow_parse_fdir_filter': ../drivers/net/i40e/i40e_ethdev.h:638:17: note: at offset 16 into destination object 'flexbytes' of size 16 638 | uint8_t flexbytes[RTE_ETH_FDIR_MAX_FLEXLEN]; | ^~~~~~~~~ Fixing by adding range checks. Fixes: 6ced3dd72f5f ("net/i40e: support flexible payload parsing for FDIR") Cc: [email protected]
Yep, definitely fixed it for POWER as well with the latest GCC compiler (Advanced Toolchain 15.0 in my case). I'll withdraw by other patch. Thanks for the heads up.
Dave
