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authorRandy Dunlap <rdunlap@infradead.org>2021-01-04 19:44:53 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-19 18:26:15 +0100
commit635a658de303556053815b6a74ccefcf548f19a2 (patch)
treeaee53e572cfd3621e6f38abd19c249986f9c3e26 /arch/arc
parentbc68af1fdcac9f80fdcfc940aadb83a85306f2f1 (diff)
arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC
[ Upstream commit 8a48c0a3360bf2bf4f40c980d0ec216e770e58ee ] fs/dax.c uses copy_user_page() but ARC does not provide that interface, resulting in a build error. Provide copy_user_page() in <asm/page.h>. ../fs/dax.c: In function 'copy_cow_page_dax': ../fs/dax.c:702:2: error: implicit declaration of function 'copy_user_page'; did you mean 'copy_to_user_page'? [-Werror=implicit-function-declaration] Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: linux-snps-arc@lists.infradead.org Cc: Dan Williams <dan.j.williams@intel.com> #Acked-by: Vineet Gupta <vgupta@synopsys.com> # v1 Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Jan Kara <jack@suse.cz> Cc: linux-fsdevel@vger.kernel.org Cc: linux-nvdimm@lists.01.org #Reviewed-by: Ira Weiny <ira.weiny@intel.com> # v2 Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/page.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h
index 0a32e8cfd074..bcd1920ae75a 100644
--- a/arch/arc/include/asm/page.h
+++ b/arch/arc/include/asm/page.h
@@ -10,6 +10,7 @@
#ifndef __ASSEMBLY__
#define clear_page(paddr) memset((paddr), 0, PAGE_SIZE)
+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
struct vm_area_struct;