linux-kernel - [PATCH 05/20] soc: fsl: qe: store muram_vbase as a void pointer instead of u8

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Message-Id: <20201205191744.7847-6-rasmus.villemoes@prevas.dk>
Date:   Sat,  5 Dec 2020 20:17:28 +0100
From:   Rasmus Villemoes <rasmus.villemoes@...vas.dk>
To:     Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        Rasmus Villemoes <rasmus.villemoes@...vas.dk>,
        linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 05/20] soc: fsl: qe: store muram_vbase as a void pointer instead of u8

The two functions cpm_muram_offset() and cpm_muram_dma() both need a
cast currently, one casts muram_vbase to do the pointer arithmetic on
void pointers, the other casts the the passed-in address u8*.

It's simpler and more consistent to just always use void* and drop all
the casting.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@...vas.dk>
---
 drivers/soc/fsl/qe/qe_common.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index 0fbdc965c4cb..303cc2f5eb4a 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -27,7 +27,7 @@
 
 static struct gen_pool *muram_pool;
 static spinlock_t cpm_muram_lock;
-static u8 __iomem *muram_vbase;
+static void __iomem *muram_vbase;
 static phys_addr_t muram_pbase;
 
 struct muram_block {
@@ -225,7 +225,7 @@ EXPORT_SYMBOL(cpm_muram_addr);
 
 unsigned long cpm_muram_offset(const void __iomem *addr)
 {
-	return addr - (void __iomem *)muram_vbase;
+	return addr - muram_vbase;
 }
 EXPORT_SYMBOL(cpm_muram_offset);
 
@@ -235,6 +235,6 @@ EXPORT_SYMBOL(cpm_muram_offset);
  */
 dma_addr_t cpm_muram_dma(void __iomem *addr)
 {
-	return muram_pbase + ((u8 __iomem *)addr - muram_vbase);
+	return muram_pbase + (addr - muram_vbase);
 }
 EXPORT_SYMBOL(cpm_muram_dma);
-- 
2.23.0