[PATCH 5.4 212/344] raid6/test: fix a compilation warning

Greg Kroah-Hartman
2020-02-21T08:33:38Z

From: Zhengyuan Liu <liuzhengyuan@kylinos.cn>

[ Upstream commit 5e5ac01c2b8802921fee680518a986011cb59820 ]

The compilation warning is redefination showed as following:

In file included from tables.c:2:
../../../include/linux/export.h:180: warning: "EXPORT_SYMBOL" redefined
#define EXPORT_SYMBOL(sym) __EXPORT_SYMBOL(sym, "")

In file included from tables.c:1:
../../../include/linux/raid/pq.h:61: note: this is the location of the previous definition
#define EXPORT_SYMBOL(sym)

Fixes: 69a94abb82ee ("export.h, genksyms: do not make genksyms calculate CRC of trimmed symbols")
Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/raid/pq.h | 2 ++
lib/raid6/mktables.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 0b6e7ad9cd2a8..e0ddb47f44020 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -58,7 +58,9 @@ extern const char raid6_empty_zero_page[PAGE_SIZE];
#define enable_kernel_altivec()
#define disable_kernel_altivec()

+#undef EXPORT_SYMBOL
#define EXPORT_SYMBOL(sym)
+#undef EXPORT_SYMBOL_GPL
#define EXPORT_SYMBOL_GPL(sym)
#define MODULE_LICENSE(licence)
#define MODULE_DESCRIPTION(desc)
diff --git a/lib/raid6/mktables.c b/lib/raid6/mktables.c
index 9c485df1308fb..f02e10fa62381 100644
--- a/lib/raid6/mktables.c
+++ b/lib/raid6/mktables.c
@@ -56,8 +56,8 @@ int main(int argc, char *argv[])
uint8_t v;
uint8_t exptbl[256], invtbl[256];

- printf("#include <linux/raid/pq.h>\n");
printf("#include <linux/export.h>\n");
+ printf("#include <linux/raid/pq.h>\n");

/* Compute multiplication table */
printf("\nconst u8 __attribute__((aligned(256)))\n"
--
2.20.1