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SubjectRe: [PATCH v3 03/19] powerpc: Move `path` variable inside DEBUG_PROM
This one should be ok.

On Wed, Apr 4, 2018 at 10:08 PM Mathieu Malaterre <malat@debian.org> wrote:
>
> 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]
>
> Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
> Signed-off-by: Mathieu Malaterre <malat@debian.org>
> ---
> v3: really move path within ifdef DEBUG_PROM
> v2: move path within ifdef DEBUG_PROM
>
> arch/powerpc/kernel/prom_init.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
> index acf4b2e0530c..223b35acbbdd 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 +1385,10 @@ static void __init reserve_mem(u64 base, u64 size)
> static void __init prom_init_mem(void)
> {
> phandle node;
> - char *path, type[64];
> +#ifdef DEBUG_PROM
> + char *path;
> +#endif
> + char type[64];
> unsigned int plen;
> cell_t *p, *endp;
> __be32 val;
> @@ -1406,7 +1409,9 @@ static void __init prom_init_mem(void)
> prom_debug("root_size_cells: %x\n", rsc);
>
> prom_debug("scanning memory:\n");
> +#ifdef DEBUG_PROM
> path = prom_scratch;
> +#endif
>
> for (node = 0; prom_next_node(&node); ) {
> type[0] = 0;
> --
> 2.11.0
>

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