Commit c4f7f311 authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

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: default avatarThomas Zimmermann <tzimmermann@suse.de>
Acked-by: default avatarHelge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211201114645.15384-6-tzimmermann@suse.de
parent ba7e3fd1

drivers/char/agp/nvidia-agp.c

+2 −1
Original line number Diff line number Diff line
@@ -261,7 +261,8 @@ 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;

	u32 __maybe_unused temp;

	int i;



	/* flush chipset */