From: Randy Dunlap <rdun...@infradead.org> [ 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 <l...@intel.com> Signed-off-by: Randy Dunlap <rdun...@infradead.org> Cc: Vineet Gupta <vgu...@synopsys.com> Cc: linux-snps-arc@lists.infradead.org Cc: Dan Williams <dan.j.willi...@intel.com> #Acked-by: Vineet Gupta <vgu...@synopsys.com> # v1 Cc: Andrew Morton <a...@linux-foundation.org> Cc: Matthew Wilcox <wi...@infradead.org> Cc: Jan Kara <j...@suse.cz> Cc: linux-fsde...@vger.kernel.org Cc: linux-nvd...@lists.01.org #Reviewed-by: Ira Weiny <ira.we...@intel.com> # v2 Signed-off-by: Vineet Gupta <vgu...@synopsys.com> Signed-off-by: Sasha Levin <sas...@kernel.org> --- arch/arc/include/asm/page.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h index 0a32e8cfd074d..bcd1920ae75a3 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; -- 2.27.0 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
