From 01cddfe99008da87dd4f6b8fbfa31e09257b9133 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 27 Feb 2017 14:26:44 -0800 Subject: [PATCH] mm,fs,dax: mark dax_iomap_pmd_fault as const The two alternative implementations of dax_iomap_fault have different prototypes, and one of them is obviously wrong as seen from this build warning: fs/dax.c: In function 'dax_iomap_fault': fs/dax.c:1462:35: error: passing argument 2 of 'dax_iomap_pmd_fault' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] This marks the argument 'const' as in all the related functions. Fixes: a2d581675d48 ("mm,fs,dax: change ->pmd_fault to ->huge_fault") Link: http://lkml.kernel.org/r/20170227203349.3318733-1-arnd@arndb.de Signed-off-by: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/dax.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/dax.c b/fs/dax.c index 5ae8b71ebadc..7436c98b92c8 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1436,7 +1436,8 @@ out: return result; } #else -static int dax_iomap_pmd_fault(struct vm_fault *vmf, struct iomap_ops *ops) +static int dax_iomap_pmd_fault(struct vm_fault *vmf, + const struct iomap_ops *ops) { return VM_FAULT_FALLBACK; } -- 2.20.1