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[v11,17/20] SUNRPC: remove call_allocate() BUG_ON if p_arglen=0 to allow RPC with void arg

Message ID 20240702162831.91604-18-snitzer@kernel.org (mailing list archive)
State New
Headers show
Series nfs/nfsd: add support for localio | expand

Commit Message

Mike Snitzer July 2, 2024, 4:28 p.m. UTC 
This is needed for the LOCALIO protocol's GETUUID RPC which takes a
void arg.  The LOCALIO protocol spec in rpcgen syntax is:

/* raw RFC 9562 UUID */
typedef u8 uuid_t<UUID_SIZE>;

program NFS_LOCALIO_PROGRAM {
    version LOCALIO_V1 {
        void
            NULL(void) = 0;

        uuid_t
            GETUUID(void) = 1;
    } = 1;
} = 400122;

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
---
 net/sunrpc/clnt.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index cfd1b1bf7e35..2d7f96103f08 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1894,7 +1894,6 @@  call_allocate(struct rpc_task *task)
 		return;
 
 	if (proc->p_proc != 0) {
-		BUG_ON(proc->p_arglen == 0);
 		if (proc->p_decode != NULL)
 			BUG_ON(proc->p_replen == 0);
 	}