[dpdk-dev] [PATCH v2] eal/windows: vfprintf build warning with clang
Dmitry Kozlyuk
dmitry.kozliuk at gmail.com
Sun Nov 29 14:42:16 CET 2020
On Sun, 29 Nov 2020 13:00:47 +0000, Nick Connolly wrote:
> When building with clang (11.0,--buildtype=debug), eal_lcore.c
> produces a -Wformat-nonliteral warning from the vfprintf call
> in log_early.
>
> Add __rte_format_printf annotation.
>
> Fixes: b8a36b086625 ("eal/windows: improve CPU and NUMA node detection")
> Cc: stable at dpdk.org
>
> Signed-off-by: Nick Connolly <nick.connolly at mayadata.io>
> Suggested-by: Dmitry Kozlyuk <dmitry.kozliuk at gmail.com>
> ---
> v2:
> * Use __rte_format_printf instead of disabling the warning
>
> lib/librte_eal/windows/eal_lcore.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/librte_eal/windows/eal_lcore.c b/lib/librte_eal/windows/eal_lcore.c
> index d5ff721e0..a85149be9 100644
> --- a/lib/librte_eal/windows/eal_lcore.c
> +++ b/lib/librte_eal/windows/eal_lcore.c
> @@ -38,6 +38,7 @@ static struct cpu_map cpu_map = { 0 };
>
> /* eal_create_cpu_map() is called before logging is initialized */
> static void
> +__rte_format_printf(1, 2)
> log_early(const char *format, ...)
> {
> va_list va;
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk at gmail.com>
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