linux-kernel - [PATCH -next] crypto: nx842 - remove set but not used variables 'dpadding' and 'max_sync

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Message-ID: <20190330055429.25848-1-yuehaibing@huawei.com>
Date:   Sat, 30 Mar 2019 13:54:29 +0800
From:   Yue Haibing <yuehaibing@...wei.com>
To:     <haren@...ibm.com>, <herbert@...dor.apana.org.au>,
        <davem@...emloft.net>, <benh@...nel.crashing.org>,
        <paulus@...ba.org>, <mpe@...erman.id.au>
CC:     <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] crypto: nx842 - remove set but not used variables 'dpadding' and 'max_sync_size'

From: YueHaibing <yuehaibing@...wei.com>

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/crypto/nx/nx-842.c: In function 'decompress':
drivers/crypto/nx/nx-842.c:356:25: warning: variable 'dpadding' set but not used [-Wunused-but-set-variable]
drivers/crypto/nx/nx-842-pseries.c: In function 'nx842_pseries_compress':
drivers/crypto/nx/nx-842-pseries.c:299:15: warning: variable 'max_sync_size' set but not used [-Wunused-but-set-variable]
drivers/crypto/nx/nx-842-pseries.c: In function 'nx842_pseries_decompress':
drivers/crypto/nx/nx-842-pseries.c:430:15: warning: variable 'max_sync_size' set but not used [-Wunused-but-set-variable]

They are not used any more and can be removed.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/crypto/nx/nx-842-pseries.c | 6 ++----
 drivers/crypto/nx/nx-842.c         | 3 +--
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c
index 6686997..5793284 100644
--- a/drivers/crypto/nx/nx-842-pseries.c
+++ b/drivers/crypto/nx/nx-842-pseries.c
@@ -296,7 +296,7 @@ static int nx842_pseries_compress(const unsigned char *in, unsigned int inlen,
 	struct nx842_workmem *workmem;
 	struct nx842_scatterlist slin, slout;
 	struct nx_csbcpb *csbcpb;
-	int ret = 0, max_sync_size;
+	int ret = 0;
 	unsigned long inbuf, outbuf;
 	struct vio_pfo_op op = {
 		.done = NULL,
@@ -319,7 +319,6 @@ static int nx842_pseries_compress(const unsigned char *in, unsigned int inlen,
 		rcu_read_unlock();
 		return -ENODEV;
 	}
-	max_sync_size = local_devdata->max_sync_size;
 	dev = local_devdata->dev;
 
 	/* Init scatterlist */
@@ -427,7 +426,7 @@ static int nx842_pseries_decompress(const unsigned char *in, unsigned int inlen,
 	struct nx842_workmem *workmem;
 	struct nx842_scatterlist slin, slout;
 	struct nx_csbcpb *csbcpb;
-	int ret = 0, max_sync_size;
+	int ret = 0;
 	unsigned long inbuf, outbuf;
 	struct vio_pfo_op op = {
 		.done = NULL,
@@ -451,7 +450,6 @@ static int nx842_pseries_decompress(const unsigned char *in, unsigned int inlen,
 		rcu_read_unlock();
 		return -ENODEV;
 	}
-	max_sync_size = local_devdata->max_sync_size;
 	dev = local_devdata->dev;
 
 	workmem = PTR_ALIGN(wmem, WORKMEM_ALIGN);
diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c
index d94e25d..f06565d 100644
--- a/drivers/crypto/nx/nx-842.c
+++ b/drivers/crypto/nx/nx-842.c
@@ -353,7 +353,7 @@ static int decompress(struct nx842_crypto_ctx *ctx,
 	unsigned int adj_slen = slen;
 	u8 *src = p->in, *dst = p->out;
 	u16 padding = be16_to_cpu(g->padding);
-	int ret, spadding = 0, dpadding = 0;
+	int ret, spadding = 0;
 	ktime_t timeout;
 
 	if (!slen || !required_len)
@@ -413,7 +413,6 @@ static int decompress(struct nx842_crypto_ctx *ctx,
 		spadding = 0;
 		dst = p->out;
 		dlen = p->oremain;
-		dpadding = 0;
 		if (dlen < required_len) { /* have ignore bytes */
 			dst = ctx->dbounce;
 			dlen = BOUNCE_BUFFER_SIZE;
-- 
2.7.0