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Subject[PATCH 5/7] agp/nvidia: Ignore value returned by readl()
Date
Fix the compiler warning

drivers/char/agp/nvidia-agp.c: In function 'nvidia_tlbflush':
drivers/char/agp/nvidia-agp.c:264:22: warning: variable 'temp' set but not used [-Wunused-but-set-variable]
264 | u32 wbc_reg, temp;

by removing the unused variable. The affected readl() is only
required for flushing caches, but the returned value is not of
interest.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/char/agp/nvidia-agp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index f78e756157db..437b3581cbe5 100644
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -261,7 +261,7 @@ static int nvidia_remove_memory(struct agp_memory *mem, off_t pg_start, int type
static void nvidia_tlbflush(struct agp_memory *mem)
{
unsigned long end;
- u32 wbc_reg, temp;
+ u32 wbc_reg;
int i;

/* flush chipset */
@@ -283,9 +283,9 @@ static void nvidia_tlbflush(struct agp_memory *mem)

/* flush TLB entries */
for (i = 0; i < 32 + 1; i++)
- temp = readl(nvidia_private.aperture+(i * PAGE_SIZE / sizeof(u32)));
+ (void)readl(nvidia_private.aperture+(i * PAGE_SIZE / sizeof(u32)));
for (i = 0; i < 32 + 1; i++)
- temp = readl(nvidia_private.aperture+(i * PAGE_SIZE / sizeof(u32)));
+ (void)readl(nvidia_private.aperture+(i * PAGE_SIZE / sizeof(u32)));
}


--
2.33.1
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