[PATCH AUTOSEL 5.15 61/82] MIPS: sni: Fix the build

Sasha Levin <[email protected]> Tue, 9 Nov 2021 17:16:19 -0500
Newsgroups gmane.linux.ports.mips,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.mips.general
Message-ID <[email protected]>
From: Bart Van Assche <[email protected]>

[ Upstream commit c91cf42f61dc77b289784ea7b15a8531defa41c0 ]

This patch fixes the following gcc 10 build error:

arch/mips/sni/time.c: In function ‘a20r_set_periodic’:
arch/mips/sni/time.c:15:26: error: unsigned conversion from ‘int’ to ‘u8’ {aka ‘volatile unsigned char’} changes value from ‘576’ to ‘64’ [-Werror=overflow]
   15 | #define SNI_COUNTER0_DIV ((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ)
      |                          ^
arch/mips/sni/time.c:21:45: note: in expansion of macro ‘SNI_COUNTER0_DIV’
   21 |  *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
      |                                             ^~~~~~~~~~~~~~~~

Cc: [email protected]
Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 arch/mips/sni/time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 240bb68ec2478..ff3ba7e778901 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -18,14 +18,14 @@ static int a20r_set_periodic(struct clock_event_device *evt)
 {
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
 	wmb();
-	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
+	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV & 0xff;
 	wmb();
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
 	wmb();
 
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
 	wmb();
-	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
+	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV & 0xff;
 	wmb();
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
 	wmb();
-- 
2.33.0