sunrpc: remove redundant variables 'checksumlen','blocksize' and 'data'

Variables 'checksumlen','blocksize' and 'data' are being assigned,
but are never used, hence they are redundant and can be removed.

Fix the following warning:

  net/sunrpc/auth_gss/gss_krb5_wrap.c:443:7: warning: variable ‘blocksize’ set but not used [-Wunused-but-set-variable]
  net/sunrpc/auth_gss/gss_krb5_crypto.c:376:15: warning: variable ‘checksumlen’ set but not used [-Wunused-but-set-variable]
  net/sunrpc/xprtrdma/svc_rdma.c:97:9: warning: variable ‘data’ set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 8654494..84a16fd 100644 (file)
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -373,7 +373,6 @@ make_checksum_v2(struct krb5_ctx *kctx, char *header, int hdrlen,
        struct scatterlist sg[1];
        int err = -1;
        u8 *checksumdata;
-       unsigned int checksumlen;
 
        if (kctx->gk5e->keyed_cksum == 0) {
                dprintk("%s: expected keyed hash for %s\n",
@@ -393,7 +392,6 @@ make_checksum_v2(struct krb5_ctx *kctx, char *header, int hdrlen,
        tfm = crypto_alloc_ahash(kctx->gk5e->cksum_name, 0, CRYPTO_ALG_ASYNC);
        if (IS_ERR(tfm))
                goto out_free_cksum;
-       checksumlen = crypto_ahash_digestsize(tfm);
 
        req = ahash_request_alloc(tfm, GFP_NOFS);
        if (!req)

diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index a737c2d..9a1347f 100644 (file)
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -440,7 +440,6 @@ static u32
 gss_wrap_kerberos_v2(struct krb5_ctx *kctx, u32 offset,
                     struct xdr_buf *buf, struct page **pages)
 {
-       int             blocksize;
        u8              *ptr, *plainhdr;
        s32             now;
        u8              flags = 0x00;
@@ -473,7 +472,6 @@ gss_wrap_kerberos_v2(struct krb5_ctx *kctx, u32 offset,
        *ptr++ = 0xff;
        be16ptr = (__be16 *)ptr;
 
-       blocksize = crypto_skcipher_blocksize(kctx->acceptor_enc);
        *be16ptr++ = 0;
        /* "inner" token header always uses 0 for RRC */
        *be16ptr++ = 0;

diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index 357ba90..134bef6 100644 (file)
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -94,7 +94,6 @@ static int read_reset_stat(struct ctl_table *table, int write,
                atomic_set(stat, 0);
        else {
                char str_buf[32];
-               char *data;
                int len = snprintf(str_buf, 32, "%d\n", atomic_read(stat));
                if (len >= 32)
                        return -EFAULT;
@@ -103,7 +102,6 @@ static int read_reset_stat(struct ctl_table *table, int write,
                        *lenp = 0;
                        return 0;
                }
-               data = &str_buf[*ppos];
                len -= *ppos;
                if (len > *lenp)
                        len = *lenp;