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authorArnd Bergmann <arnd@arndb.de>2018-08-23 17:00:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-23 18:48:43 -0700
commita2036a1ef2ee91acab01a0ae4a534070691a42ec (patch)
tree44d1141f06486066e50ea0cf831ba48c187b5762
parent3cc97bea600372885923a1c270d82523411a4c70 (diff)
downloadlinux-a2036a1ef2ee91acab01a0ae4a534070691a42ec.tar.bz2
fs/proc/vmcore.c: hide vmcoredd_mmap_dumps() for nommu builds
Without CONFIG_MMU, we get a build warning: fs/proc/vmcore.c:228:12: error: 'vmcoredd_mmap_dumps' defined but not used [-Werror=unused-function] static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst, The function is only referenced from an #ifdef'ed caller, so this uses the same #ifdef around it. Link: http://lkml.kernel.org/r/20180525213526.2117790-1-arnd@arndb.de Fixes: 7efe48df8a3d ("vmcore: append device dumps to vmcore as elf notes") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Ganesh Goudar <ganeshgr@chelsio.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/proc/vmcore.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 6c1c2607e9e4..cbde728f8ac6 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -225,6 +225,7 @@ out_unlock:
return ret;
}
+#ifdef CONFIG_MMU
static int vmcoredd_mmap_dumps(struct vm_area_struct *vma, unsigned long dst,
u64 start, size_t size)
{
@@ -259,6 +260,7 @@ out_unlock:
mutex_unlock(&vmcoredd_mutex);
return ret;
}
+#endif /* CONFIG_MMU */
#endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */
/* Read from the ELF header and then the crash dump. On error, negative value is