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xprtrdma: Fix a maybe-uninitialized compiler warning

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This minor fix-up keeps GCC from complaining that "last' may be used
uninitialized", which breaks some build workflows that have been running
with all warnings treated as errors.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Benjamin Coddington 2021-11-02 14:48:59 -04:00 committed by Trond Myklebust
parent 8791545eda
commit cb5a967f7c
1 changed files with 7 additions and 6 deletions
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13
net/sunrpc/xprtrdma/frwr_ops.c
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@ -515,8 +515,8 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
* a single ib_post_send() call.
*/
prev = &first;
while ((mr = rpcrdma_mr_pop(&req->rl_registered))) {
mr = rpcrdma_mr_pop(&req->rl_registered);
do {
trace_xprtrdma_mr_localinv(mr);
r_xprt->rx_stats.local_inv_needed++;
@ -533,7 +533,8 @@ void frwr_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
*prev = last;
prev = &last->next;
}
} while ((mr = rpcrdma_mr_pop(&req->rl_registered)));
mr = container_of(last, struct rpcrdma_mr, mr_invwr);
/* Strong send queue ordering guarantees that when the
@ -617,8 +618,8 @@ void frwr_unmap_async(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
* a single ib_post_send() call.
*/
prev = &first;
while ((mr = rpcrdma_mr_pop(&req->rl_registered))) {
mr = rpcrdma_mr_pop(&req->rl_registered);
do {
trace_xprtrdma_mr_localinv(mr);
r_xprt->rx_stats.local_inv_needed++;
@ -635,7 +636,7 @@ void frwr_unmap_async(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
*prev = last;
prev = &last->next;
}
} while ((mr = rpcrdma_mr_pop(&req->rl_registered)));
/* Strong send queue ordering guarantees that when the
* last WR in the chain completes, all WRs in the chain