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authorChuck Lever <chuck.lever@oracle.com>2020-11-03 23:03:50 +0300
committerChuck Lever <chuck.lever@oracle.com>2020-11-30 22:46:42 +0300
commit044959715f370b24870c95df3940add8710c5a29 (patch)
treeb18ece9be925a73a6ed835d10a86ef9dbf6e22cf /fs/nfsd
parentaec387d5909304810d899f7d90ae57df33f3a75c (diff)
downloadlinux-044959715f370b24870c95df3940add8710c5a29.tar.xz
NFSD: Replace READ* macros in nfsd4_decode_getdeviceinfo()
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4xdr.c50
1 files changed, 29 insertions, 21 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 205e07d2b9dd..b244d16eeade 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -638,6 +638,21 @@ nfsd4_decode_state_owner4(struct nfsd4_compoundargs *argp,
return nfsd4_decode_opaque(argp, owner);
}
+#ifdef CONFIG_NFSD_PNFS
+static __be32
+nfsd4_decode_deviceid4(struct nfsd4_compoundargs *argp,
+ struct nfsd4_deviceid *devid)
+{
+ __be32 *p;
+
+ p = xdr_inline_decode(argp->xdr, NFS4_DEVICEID4_SIZE);
+ if (!p)
+ return nfserr_bad_xdr;
+ memcpy(devid, p, sizeof(*devid));
+ return nfs_ok;
+}
+#endif /* CONFIG_NFSD_PNFS */
+
static __be32
nfsd4_decode_sessionid4(struct nfsd4_compoundargs *argp,
struct nfs4_sessionid *sessionid)
@@ -1765,27 +1780,20 @@ static __be32
nfsd4_decode_getdeviceinfo(struct nfsd4_compoundargs *argp,
struct nfsd4_getdeviceinfo *gdev)
{
- DECODE_HEAD;
- u32 num, i;
-
- READ_BUF(sizeof(struct nfsd4_deviceid) + 3 * 4);
- COPYMEM(&gdev->gd_devid, sizeof(struct nfsd4_deviceid));
- gdev->gd_layout_type = be32_to_cpup(p++);
- gdev->gd_maxcount = be32_to_cpup(p++);
- num = be32_to_cpup(p++);
- if (num) {
- if (num > 1000)
- goto xdr_error;
- READ_BUF(4 * num);
- gdev->gd_notify_types = be32_to_cpup(p++);
- for (i = 1; i < num; i++) {
- if (be32_to_cpup(p++)) {
- status = nfserr_inval;
- goto out;
- }
- }
- }
- DECODE_TAIL;
+ __be32 status;
+
+ status = nfsd4_decode_deviceid4(argp, &gdev->gd_devid);
+ if (status)
+ return status;
+ if (xdr_stream_decode_u32(argp->xdr, &gdev->gd_layout_type) < 0)
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_u32(argp->xdr, &gdev->gd_maxcount) < 0)
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_uint32_array(argp->xdr,
+ &gdev->gd_notify_types, 1) < 0)
+ return nfserr_bad_xdr;
+
+ return nfs_ok;
}
static __be32