Commit 911bacda authored by Baokun Li's avatar Baokun Li Committed by Michael Ellerman
Browse files

powerpc/spufs: Remove set but not used variable 'dummy' 



Fixes gcc '-Wunused-but-set-variable' warning:
# WARNING: Fixes tag on line 3 doesn't match correct format
# WARNING: Fixes tag on line 3 doesn't match correct format
# WARNING: Fixes tag on line 3 doesn't match correct format
# WARNING: Fixes tag on line 3 doesn't match correct format
# WARNING: Fixes tag on line 3 doesn't match correct format

arch/powerpc/platforms/cell/spufs/switch.c: In function 'check_ppu_mb_stat':
arch/powerpc/platforms/cell/spufs/switch.c:1660:6: warning:
variable ‘dummy’ set but not used [-Wunused-but-set-variable]

arch/powerpc/platforms/cell/spufs/switch.c: In function 'check_ppuint_mb_stat':
arch/powerpc/platforms/cell/spufs/switch.c:1675:6: warning:
variable ‘dummy’ set but not used [-Wunused-but-set-variable]

It never used since introduction.

Signed-off-by: default avatarBaokun Li <libaokun1@huawei.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210601085127.139598-1-libaokun1@huawei.com
parent b629f6c0

arch/powerpc/platforms/cell/spufs/switch.c

+2 −4
Original line number Diff line number Diff line
@@ -1657,14 +1657,13 @@ static inline void restore_spu_mb(struct spu_state *csa, struct spu *spu) 
static inline void check_ppu_mb_stat(struct spu_state *csa, struct spu *spu)

{

	struct spu_problem __iomem *prob = spu->problem;

	u32 dummy = 0;



	/* Restore, Step 66:

	 *     If CSA.MB_Stat[P]=0 (mailbox empty) then

	 *     read from the PPU_MB register.

	 */

	if ((csa->prob.mb_stat_R & 0xFF) == 0) {

		dummy = in_be32(&prob->pu_mb_R);

		in_be32(&prob->pu_mb_R);

		eieio();

	}

}
@@ -1672,14 +1671,13 @@ static inline void check_ppu_mb_stat(struct spu_state *csa, struct spu *spu) 
static inline void check_ppuint_mb_stat(struct spu_state *csa, struct spu *spu)

{

	struct spu_priv2 __iomem *priv2 = spu->priv2;

	u64 dummy = 0UL;



	/* Restore, Step 66:

	 *     If CSA.MB_Stat[I]=0 (mailbox empty) then

	 *     read from the PPUINT_MB register.

	 */

	if ((csa->prob.mb_stat_R & 0xFF0000) == 0) {

		dummy = in_be64(&priv2->puint_mb_R);

		in_be64(&priv2->puint_mb_R);

		eieio();

		spu_int_stat_clear(spu, 2, CLASS2_ENABLE_MAILBOX_INTR);

		eieio();