3.19.8-ckt8 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Bart Van Assche <bart.vanass...@sandisk.com>
commit c257ea6f9f9aed0b173e0c2932bb8dac5612cdc6 upstream.
Avoid that the following kernel warning is reported if the SRP
target system accepts fewer channels per connection than what
was requested by the initiator system:
WARNING: at drivers/infiniband/ulp/srp/ib_srp.c:617 srp_destroy_qp+0xb1/0x120
[ib_srp]()
Call Trace:
[<ffffffff8105d67f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8105d6da>] warn_slowpath_null+0x1a/0x20
[<ffffffffa05419e1>] srp_destroy_qp+0xb1/0x120 [ib_srp]
[<ffffffffa05445fb>] srp_create_ch_ib+0x19b/0x420 [ib_srp]
[<ffffffffa0545257>] srp_create_target+0x7d7/0xa94 [ib_srp]
[<ffffffff8138dac0>] dev_attr_store+0x20/0x30
[<ffffffff812079ef>] sysfs_write_file+0xef/0x170
[<ffffffff81191fc4>] vfs_write+0xb4/0x130
[<ffffffff8119276f>] sys_write+0x5f/0xa0
[<ffffffff815a0a59>] system_call_fastpath+0x16/0x1b
Signed-off-by: Bart Van Assche <bart.vanass...@sandisk.com>
Cc: Sagi Grimberg <sa...@mellanox.com>
Cc: Sebastian Parschauer <sebastian.rie...@profitbricks.com>
Cc: Christoph Hellwig <h...@lst.de>
Signed-off-by: Doug Ledford <dledf...@redhat.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/infiniband/ulp/srp/ib_srp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c
b/drivers/infiniband/ulp/srp/ib_srp.c
index 313dfad..201e6f9 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -3265,7 +3265,7 @@ static ssize_t srp_create_target(struct device *dev,
srp_free_ch_ib(target, ch);
srp_free_req_data(target, ch);
target->ch_count = ch - target->ch;
- break;
+ goto connected;
}
}
@@ -3275,6 +3275,7 @@ static ssize_t srp_create_target(struct device *dev,
node_idx++;
}
+connected:
target->scsi_host->nr_hw_queues = target->ch_count;
ret = srp_add_target(host, target);
--
1.9.1
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