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powerpc/powermac: Mark variable x as unused 

Since the value of x is never intended to be read, declare it with gcc
attribute as unused. Fix warning treated as error with W=1:

  arch/powerpc/platforms/powermac/bootx_init.c:471:21: error: variable ‘x’ 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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Mathieu Malaterre 2018-04-04 22:07:46 +02:00 committed by Michael Ellerman
parent f0e0b86638
commit 5a4b475cf8
1 changed files with 3 additions and 1 deletions
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4
arch/powerpc/platforms/powermac/bootx_init.c
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@ -468,7 +468,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
boot_infos_t *bi = (boot_infos_t *) r4;
unsigned long hdr;
unsigned long space;
unsigned long ptr, x;
unsigned long ptr;
char *model;
unsigned long offset = reloc_offset();
@ -562,6 +562,8 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
* MMU switched OFF, so this should not be useful anymore.
*/
if (bi->version < 4) {
unsigned long x __maybe_unused;
bootx_printf("Touching pages...\n");
/*