[PATCH 3/4] scsi: fix compiler warning for sg

From: Sinan Kaya
Date: Wed Nov 04 2015 - 23:46:56 EST

The MULDIV macro has been designed for small
numbers. It emits an overflow warning on 64 bit
systems. This patch places type casts in the
parameters to fix the compiler warning.

Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
drivers/scsi/sg.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 9d7b7db..eb2739d 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -88,7 +88,10 @@ static void sg_proc_cleanup(void);
* Of course an overflow is inavoidable if the result of muldiv doesn't fit
* in 32 bits.
-#define MULDIV(X,MUL,DIV) ((((X % DIV) * MUL) / DIV) + ((X / DIV) * MUL))
+static inline u64 MULDIV(u64 X, u32 MUL, u32 DIV)
+ return ((((X % DIV) * MUL) / DIV) + ((X / DIV) * MUL));


Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project

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