[PATCH 1/2] MIPS: Silence missing prototype warning

From: Tiezhu Yang
Date: Thu Sep 29 2022 - 03:40:16 EST


Silence the following two warnings when make W=1:

CC arch/mips/lib/bswapsi.o
arch/mips/lib/bswapsi.c:5:22: warning: no previous prototype for '__bswapsi2' [-Wmissing-prototypes]
unsigned int notrace __bswapsi2(unsigned int u)
^~~~~~~~~~
CC arch/mips/lib/bswapdi.o
arch/mips/lib/bswapdi.c:5:28: warning: no previous prototype for '__bswapdi2' [-Wmissing-prototypes]
unsigned long long notrace __bswapdi2(unsigned long long u)
^~~~~~~~~~
AR arch/mips/lib/built-in.a

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
---
arch/mips/lib/bswapdi.c | 4 +++-
arch/mips/lib/bswapsi.c | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/mips/lib/bswapdi.c b/arch/mips/lib/bswapdi.c
index fcef7408..1d020e1 100644
--- a/arch/mips/lib/bswapdi.c
+++ b/arch/mips/lib/bswapdi.c
@@ -2,6 +2,9 @@
#include <linux/export.h>
#include <linux/compiler.h>

+/* To silence -Wmissing-prototypes. */
+unsigned long long __bswapdi2(unsigned long long u);
+
unsigned long long notrace __bswapdi2(unsigned long long u)
{
return (((u) & 0xff00000000000000ull) >> 56) |
@@ -13,5 +16,4 @@ unsigned long long notrace __bswapdi2(unsigned long long u)
(((u) & 0x000000000000ff00ull) << 40) |
(((u) & 0x00000000000000ffull) << 56);
}
-
EXPORT_SYMBOL(__bswapdi2);
diff --git a/arch/mips/lib/bswapsi.c b/arch/mips/lib/bswapsi.c
index 22d8e4f..02d9df4 100644
--- a/arch/mips/lib/bswapsi.c
+++ b/arch/mips/lib/bswapsi.c
@@ -2,6 +2,9 @@
#include <linux/export.h>
#include <linux/compiler.h>

+/* To silence -Wmissing-prototypes. */
+unsigned int __bswapsi2(unsigned int u);
+
unsigned int notrace __bswapsi2(unsigned int u)
{
return (((u) & 0xff000000) >> 24) |
@@ -9,5 +12,4 @@ unsigned int notrace __bswapsi2(unsigned int u)
(((u) & 0x0000ff00) << 8) |
(((u) & 0x000000ff) << 24);
}
-
EXPORT_SYMBOL(__bswapsi2);
--
2.1.0