From 79e9dfd7f89a362d9a987b9aff10d3899de7ab23 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 3 Jan 2024 16:56:56 +0100 Subject: [PATCH] nvme: trace: avoid memcpy overflow warning [ Upstream commit a7de1dea76cd6a3707707af4ea2f8bc3cdeaeb11 ] A previous patch introduced a struct_group() in nvme_common_command to help stringop fortification figure out the length of the fields, but one function is not currently using them: In file included from drivers/nvme/target/core.c:7: In file included from include/linux/string.h:254: include/linux/fortify-string.h:592:4: error: call to '__read_overflow2_field' declared with 'warning' attribute: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror,-Wattribute-warning] __read_overflow2_field(q_size_field, size); ^ Change this one to use the correct field name to avoid the warning. Fixes: 5c629dc9609dc ("nvme: use struct group for generic command dwords") Signed-off-by: Arnd Bergmann Signed-off-by: Keith Busch Signed-off-by: Sasha Levin --- drivers/nvme/target/trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvme/target/trace.h b/drivers/nvme/target/trace.h index 155334d..974d99d 100644 --- a/drivers/nvme/target/trace.h +++ b/drivers/nvme/target/trace.h @@ -84,7 +84,7 @@ TRACE_EVENT(nvmet_req_init, __entry->flags = cmd->common.flags; __entry->nsid = le32_to_cpu(cmd->common.nsid); __entry->metadata = le64_to_cpu(cmd->common.metadata); - memcpy(__entry->cdw10, &cmd->common.cdw10, + memcpy(__entry->cdw10, &cmd->common.cdws, sizeof(__entry->cdw10)); ), TP_printk("nvmet%s: %sqid=%d, cmdid=%u, nsid=%u, flags=%#x, " -- 2.7.4