agp/nvidia: Declare value returned by readl() as unused
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 marking the temp variable with __maybe_unused. The affected readl() is only required for flushing caches, but the returned value is not of interest. v2: * declare temp as __maybe_unused (Helge) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Helge Deller <deller@gmx.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211201114645.15384-6-tzimmermann@suse.de
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@ -261,7 +261,8 @@ static int nvidia_remove_memory(struct agp_memory *mem, off_t pg_start, int type
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static void nvidia_tlbflush(struct agp_memory *mem)
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{
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unsigned long end;
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u32 wbc_reg, temp;
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u32 wbc_reg;
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u32 __maybe_unused temp;
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int i;
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/* flush chipset */
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