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Subject[PATCH v3] fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id
Date
READ_BUF(8);
dummy = be32_to_cpup(p++);
dummy = be32_to_cpup(p++);
...
READ_BUF(4);
dummy = be32_to_cpup(p++);

Assigning value to "dummy" here, but that stored value
is overwritten before it can be used.
At the same time READ_BUF() will re-update the pointer p.

delete invalid assignment statements

Signed-off-by: nixiaoming <nixiaoming@huawei.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@fieldses.org>
---
fs/nfsd/nfs4xdr.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index a96843c..e669e20 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1390,10 +1390,8 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
p += XDR_QUADLEN(dummy);
}

- /* ssp_window and ssp_num_gss_handles */
+ /* ignore ssp_window and ssp_num_gss_handles */
READ_BUF(8);
- dummy = be32_to_cpup(p++);
- dummy = be32_to_cpup(p++);
break;
default:
goto xdr_error;
--
2.10.1
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