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[076/147] alpha: agp: make empty macros use do-while-0 style

Message ID 20210908025721.5A-OcGSCs%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [001/147] mm, slub: don't call flush_all() from slab_debug_trace_open() | expand

Commit Message

Andrew Morton Sept. 8, 2021, 2:57 a.m. UTC 
From: Randy Dunlap <rdunlap@infradead.org>
Subject: alpha: agp: make empty macros use do-while-0 style

Copy these macros from ia64/include/asm/agp.h to avoid the
"empty-body" in 'if' statment warning.

drivers/char/agp/generic.c: In function 'agp_generic_destroy_page':
../drivers/char/agp/generic.c:1265:42: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
 1265 |                 unmap_page_from_agp(page);

Link: https://lkml.kernel.org/r/20210809030822.20658-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/alpha/include/asm/agp.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

--- a/arch/alpha/include/asm/agp.h~alpha-agp-make-empty-macros-use-do-while-0-style
+++ a/arch/alpha/include/asm/agp.h
@@ -6,8 +6,8 @@ 
 
 /* dummy for now */
 
-#define map_page_into_agp(page) 
-#define unmap_page_from_agp(page) 
+#define map_page_into_agp(page)		do { } while (0)
+#define unmap_page_from_agp(page)	do { } while (0)
 #define flush_agp_cache() mb()
 
 /* GATT allocation. Returns/accepts GATT kernel virtual address. */