Commit 3ee48b6af49cf534ca2f481ecc484b156a41451d added the
set_iounmap_nonlazy function for use on x86, but actually defined it on
all architectures. Only x86 prototypes this function (in asm/io.h), and
only x86 uses it (in arch/x86/kernel/crash_dump_64.c), so avoid defining
it on non-x86.
Meanwhile, include the appropriate header with the prototype, to
eliminate a warning from gcc (-Wmissing-prototypes) and from Sparse
(-Wdecl).
mm/vmalloc.c:563:6: warning: no previous prototype for ‘set_iounmap_nonlazy’ [-Wmissing-prototypes]
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
mm/vmalloc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 78e0830..fc32a0a 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -27,6 +27,7 @@
#include <linux/pfn.h>
#include <linux/kmemleak.h>
#include <linux/atomic.h>
+#include <linux/io.h>
#include <asm/uaccess.h>
#include <asm/tlbflush.h>
#include <asm/shmparam.h>
@@ -556,6 +557,7 @@ static atomic_t vmap_lazy_nr = ATOMIC_INIT(0);
/* for per-CPU blocks */
static void purge_fragmented_blocks_allcpus(void);
+#ifdef CONFIG_X86
/*
* called before a call to iounmap() if the caller wants vm_area_struct's
* immediately freed.
@@ -564,6 +566,7 @@ void set_iounmap_nonlazy(void)
{
atomic_set(&vmap_lazy_nr, lazy_max_pages()+1);
}
+#endif
/*
* Purges all lazily-freed vmap areas.
--
1.7.10.4
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