From: Jeff Dike <jdike@addtoit.com>
Date: Fri, 6 Jun 2008 05:46:13 +0000 (-0700)
Subject: uml: memcpy export needs to follow host declaration
X-Git-Tag: firefly_0821_release~20044
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8bfd04b974689f700bbd053ad6e66b0a95fb80c9;p=firefly-linux-kernel-4.4.55.git

uml: memcpy export needs to follow host declaration

x86_64 defines either memcpy or __memcpy depending on the gcc version, and
it looks like UML needs to follow that in its exporting.

Cc: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/um/sys-x86_64/ksyms.c b/arch/um/sys-x86_64/ksyms.c
index 6604673a849d..1db2fce00948 100644
--- a/arch/um/sys-x86_64/ksyms.c
+++ b/arch/um/sys-x86_64/ksyms.c
@@ -3,5 +3,9 @@
 #include <asm/checksum.h>
 
 /*XXX: we need them because they would be exported by x86_64 */
+#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
+EXPORT_SYMBOL(memcpy);
+#else
 EXPORT_SYMBOL(__memcpy);
+#endif
 EXPORT_SYMBOL(csum_partial);