linux-kernel - [PATCH 04/20] soc: fsl: qe: make cpm_muram

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Message-Id: <20201205191744.7847-5-rasmus.villemoes@prevas.dk>
Date:   Sat,  5 Dec 2020 20:17:27 +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 04/20] soc: fsl: qe: make cpm_muram_offset take a const void* argument

Allow passing const-qualified pointers without requiring a cast in the
caller.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@...vas.dk>
---
 drivers/soc/fsl/qe/qe_common.c | 2 +-
 include/soc/fsl/qe/qe.h        | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index 75075591f630..0fbdc965c4cb 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -223,7 +223,7 @@ void __iomem *cpm_muram_addr(unsigned long offset)
 }
 EXPORT_SYMBOL(cpm_muram_addr);
 
-unsigned long cpm_muram_offset(void __iomem *addr)
+unsigned long cpm_muram_offset(const void __iomem *addr)
 {
 	return addr - (void __iomem *)muram_vbase;
 }
diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h
index 3feddfec9f87..8ee3747433c0 100644
--- a/include/soc/fsl/qe/qe.h
+++ b/include/soc/fsl/qe/qe.h
@@ -102,7 +102,7 @@ s32 cpm_muram_alloc(unsigned long size, unsigned long align);
 void cpm_muram_free(s32 offset);
 s32 cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
 void __iomem *cpm_muram_addr(unsigned long offset);
-unsigned long cpm_muram_offset(void __iomem *addr);
+unsigned long cpm_muram_offset(const void __iomem *addr);
 dma_addr_t cpm_muram_dma(void __iomem *addr);
 #else
 static inline s32 cpm_muram_alloc(unsigned long size,
@@ -126,7 +126,7 @@ static inline void __iomem *cpm_muram_addr(unsigned long offset)
 	return NULL;
 }
 
-static inline unsigned long cpm_muram_offset(void __iomem *addr)
+static inline unsigned long cpm_muram_offset(const void __iomem *addr)
 {
 	return -ENOSYS;
 }
-- 
2.23.0