* [TRIVIAL] Squash highmem related warnings
@ 2002-10-01 2:40 David Gibson
0 siblings, 0 replies; only message in thread
From: David Gibson @ 2002-10-01 2:40 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-kernel
Linus, please apply. This adds to the non-highmem version of
kunmap_atomic() a dummy reference to its arguments. This can prevent
unused variable warnings in its callers, such as in
put_aio_ring_event() in fs/aio.c.
diff -urN /home/dgibson/kernel/linuxppc-2.5/include/linux/highmem.h linux-bluefish/include/linux/highmem.h
--- /home/dgibson/kernel/linuxppc-2.5/include/linux/highmem.h 2002-09-20 14:36:09.000000000 +1000
+++ linux-bluefish/include/linux/highmem.h 2002-10-01 12:17:11.000000000 +1000
@@ -25,7 +25,8 @@
#define kunmap(page) do { (void) (page); } while (0)
#define kmap_atomic(page, idx) page_address(page)
-#define kunmap_atomic(addr, idx) do { } while (0)
+#define kunmap_atomic(addr, idx) do { /* avoid unused variable warnings in caller: */ \
+ (void)(addr); } while (0)
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif /* CONFIG_HIGHMEM */
--
David Gibson | For every complex problem there is a
david@gibson.dropbear.id.au | solution which is simple, neat and
| wrong.
http://www.ozlabs.org/people/dgibson
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2002-10-01 2:40 [TRIVIAL] Squash highmem related warnings David Gibson
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