linux-kernel - [PATCH v4 35/47] soc: fsl: qe: make cpm_muram

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Date:   Fri,  8 Nov 2019 14:01:11 +0100
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
        Christophe Leroy <christophe.leroy@....fr>
Cc:     linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Scott Wood <oss@...error.net>,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: [PATCH v4 35/47] soc: fsl: qe: make cpm_muram_free() return void

Nobody uses the return value from cpm_muram_free, and functions that
free resources usually return void. One could imagine a use for a "how
much have I allocated" a la ksize(), but knowing how much one had
access to after the fact is useless.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 drivers/soc/fsl/qe/qe_common.c | 3 +--
 include/soc/fsl/qe/qe.h        | 5 ++---
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index 50be59678903..ea9bef1d2c77 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -170,7 +170,7 @@ EXPORT_SYMBOL(cpm_muram_alloc);
  * cpm_muram_free - free a chunk of multi-user ram
  * @offset: The beginning of the chunk as returned by cpm_muram_alloc().
  */
-int cpm_muram_free(s32 offset)
+void cpm_muram_free(s32 offset)
 {
 	unsigned long flags;
 	int size;
@@ -188,7 +188,6 @@ int cpm_muram_free(s32 offset)
 	}
 	gen_pool_free(muram_pool, offset + GENPOOL_OFFSET, size);
 	spin_unlock_irqrestore(&cpm_muram_lock, flags);
-	return size;
 }
 EXPORT_SYMBOL(cpm_muram_free);
 
diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h
index f589ae3f1216..e282ac01ec08 100644
--- a/include/soc/fsl/qe/qe.h
+++ b/include/soc/fsl/qe/qe.h
@@ -99,7 +99,7 @@ int cpm_muram_init(void);
 
 #if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
 s32 cpm_muram_alloc(unsigned long size, unsigned long align);
-int cpm_muram_free(s32 offset);
+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);
@@ -111,9 +111,8 @@ static inline s32 cpm_muram_alloc(unsigned long size,
 	return -ENOSYS;
 }
 
-static inline int cpm_muram_free(s32 offset)
+static inline void cpm_muram_free(s32 offset)
 {
-	return -ENOSYS;
 }
 
 static inline s32 cpm_muram_alloc_fixed(unsigned long offset,
-- 
2.23.0