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net/smc: fix smc_poll in SMC_INIT state

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[ Upstream commit d7cf4a3bf3 ]

smc_poll() returns with mask bit EPOLLPRI if the connection urg_state
is SMC_URG_VALID. Since SMC_URG_VALID is zero, smc_poll signals
EPOLLPRI errorneously if called in state SMC_INIT before the connection
is created, for instance in a non-blocking connect scenario.

This patch switches to non-zero values for the urg states.

Reviewed-by: Karsten Graul <kgraul@linux.ibm.com>
Fixes: de8474eb9d ("net/smc: urgent data support")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ursula Braun 2019-02-21 12:56:54 +01:00 committed by Greg Kroah-Hartman
parent 795cb33c32
commit f56b3c297c
1 changed files with 3 additions and 3 deletions
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6
net/smc/smc.h
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@ -113,9 +113,9 @@ struct smc_host_cdc_msg { /* Connection Data Control message */
} __aligned(8);
enum smc_urg_state {
SMC_URG_VALID, /* data present */
SMC_URG_NOTYET, /* data pending */
SMC_URG_READ /* data was already read */
SMC_URG_VALID = 1, /* data present */
SMC_URG_NOTYET = 2, /* data pending */
SMC_URG_READ = 3, /* data was already read */
};
struct smc_connection {