From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, kernel test robot <lkp@intel.com>,
Randy Dunlap <rdunlap@infradead.org>,
Vineet Gupta <vgupta@synopsys.com>,
linux-snps-arc@lists.infradead.org,
Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10 081/152] arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC
Date: Mon, 18 Jan 2021 12:34:16 +0100 [thread overview]
Message-ID: <20210118113356.647896767@linuxfoundation.org> (raw)
In-Reply-To: <20210118113352.764293297@linuxfoundation.org>
From: Randy Dunlap <rdunlap@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 <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>
---
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 b0dfed0f12be0..d9c264dc25fcb 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
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parent reply other threads:[~2021-01-18 11:43 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20210118113352.764293297@linuxfoundation.org>]
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