net/tls: remove set but not used variables

Commit 4504ab0e6eb8 ("net/tls: Inform user space about send buffer availability")
made us report write_space regardless whether partial record
push was successful or not.  Remove the now unused return value
to clean up the following W=1 warning:

net/tls/tls_device.c: In function ‘tls_device_write_space’:
net/tls/tls_device.c:546:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
  int rc = 0;
      ^~

CC: Vakul Garg <vakul.garg@nxp.com>
CC: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index ad1580ac097a..ca54a7c7ec81 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -541,14 +541,11 @@ static int tls_device_push_pending_record(struct sock *sk, int flags)
 
 void tls_device_write_space(struct sock *sk, struct tls_context *ctx)
 {
-        int rc = 0;
-
         if (!sk->sk_write_pending && tls_is_partially_sent_record(ctx)) {
                 gfp_t sk_allocation = sk->sk_allocation;
 
                 sk->sk_allocation = GFP_ATOMIC;
-                rc = tls_push_partial_record(sk, ctx,
-                                             MSG_DONTWAIT | MSG_NOSIGNAL);
+                tls_push_partial_record(sk, ctx, MSG_DONTWAIT | MSG_NOSIGNAL);
                 sk->sk_allocation = sk_allocation;
         }
 }