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SubjectRe: [PATCH 03/19] powerpc: Mark variables as unused
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Le 22/03/2018 à 21:19, Mathieu Malaterre a écrit :
> Add gcc attribute unused for two variables. Fix warnings treated as errors
> with W=1:
>
> arch/powerpc/kernel/prom_init.c:1388:8: error: variable ‘path’ set but not used [-Werror=unused-but-set-variable]
>
> Signed-off-by: Mathieu Malaterre <malat@debian.org>
> ---
> arch/powerpc/kernel/prom_init.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
> index acf4b2e0530c..6a3ac4522144 100644
> --- a/arch/powerpc/kernel/prom_init.c
> +++ b/arch/powerpc/kernel/prom_init.c
> @@ -603,7 +603,7 @@ static void __init early_cmdline_parse(void)
> const char *opt;
>
> char *p;
> - int l = 0;
> + int l __maybe_unused = 0;
>
> prom_cmd_line[0] = 0;
> p = prom_cmd_line;
> @@ -1385,7 +1385,7 @@ static void __init reserve_mem(u64 base, u64 size)
> static void __init prom_init_mem(void)
> {
> phandle node;
> - char *path, type[64];
> + char *path __maybe_unused, type[64];

path is only used if DEBUG_PROM is defined, so it should be enclosed
into #ifdef DEBUG_PROM

Christophe

> unsigned int plen;
> cell_t *p, *endp;
> __be32 val;
>

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