Hello Lizhi Hou,
Commit 7ea046838021 ("accel/amdxdna: Support firmware debug buffer")
from Oct 16, 2025 (linux-next), leads to the following Smatch static
checker warning:
drivers/accel/amdxdna/aie2_ctx.c:882 aie2_hwctx_sync_debug_bo()
warn: missing error code? 'ret'
drivers/accel/amdxdna/aie2_ctx.c
863 int aie2_hwctx_sync_debug_bo(struct amdxdna_hwctx *hwctx, u32
debug_bo_hdl)
864 {
865 struct amdxdna_client *client = hwctx->client;
866 struct amdxdna_dev *xdna = client->xdna;
867 struct amdxdna_drv_cmd cmd = { 0 };
868 u64 seq;
869 int ret;
870
871 cmd.opcode = SYNC_DEBUG_BO;
872 ret = amdxdna_cmd_submit(client, &cmd,
AMDXDNA_INVALID_BO_HANDLE,
873 &debug_bo_hdl, 1, hwctx->id, &seq);
874 if (ret) {
875 XDNA_ERR(xdna, "Submit command failed");
876 return ret;
877 }
878
879 aie2_cmd_wait(hwctx, seq);
880 if (cmd.result) {
881 XDNA_ERR(xdna, "Response failure 0x%x", cmd.result);
--> 882 return ret;
ret is zero. return -EINVAL or something?
883 }
884
885 return 0;
886 }
regards,
dan carpenter
