Re: clang: net: qed_main.c:1227:3: error: 'snprintf' will always be truncated; specified size is 16, but format string expands to at least 18 [-Werror,-Wfortify-source]

On Mon, 28 Aug 2023 at 20:22, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:

On Mon, Aug 28, 2023 at 05:57:38PM +0530, Naresh Kamboju wrote:

...

[My two cents]

stable-rc linux-6.1.y and linux-6.4.y x86 clang-nightly builds fail with following warnings / errors.

Build errors:

drivers/net/ethernet/qlogic/qed/qed_main.c:1227:3: error: 'snprintf' will always be truncated; specified size is 16, but format string expands to at least 18 [-Werror,-Wfortify-source] 1227 | snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x", | ^ 1 error generated.

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

Is this also an issue in 6.5?

I see it on 6.5, Linux next-20230828 tag, stable 6.4 and 6.1.

- Naresh