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net/smc: fix return code from FLUSH command 

The FLUSH command is used to empty the pnet table. No return code is
expected from the command. Commit a9d8b0b1e3d6 added namespace support
for the pnet table and changed the FLUSH command processing to call
smc_pnet_remove_by_pnetid() to remove the pnet entries. This function
returns -ENOENT when no entry was deleted, which is now the return code
of the FLUSH command. As a result the FLUSH command will return an error
when the pnet table is already empty.
Restore the expected behavior and let FLUSH always return 0.

Fixes: a9d8b0b1e3d6 ("net/smc: add pnet table namespace support")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul 2019-04-11 11:17:33 +02:00 committed by David S. Miller
parent 07603b2308
commit 8ef659f1a8
1 changed files with 2 additions and 1 deletions
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3
net/smc/smc_pnet.c
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@ -603,7 +603,8 @@ static int smc_pnet_flush(struct sk_buff *skb, struct genl_info *info)
{
struct net *net = genl_info_net(info);
return smc_pnet_remove_by_pnetid(net, NULL);
smc_pnet_remove_by_pnetid(net, NULL);
return 0;
}
/* SMC_PNETID generic netlink operation definition */