]> err.no Git - linux-2.6/commit
IB/ipath: Fix potentially wrong RNR retry counter returned in ipath_query_qp()
authorPatrick Marchand Latifi <patrick.latifi@qlogic.com>
Tue, 8 Jan 2008 07:43:04 +0000 (23:43 -0800)
committerRoland Dreier <rolandd@cisco.com>
Tue, 11 Mar 2008 21:01:14 +0000 (14:01 -0700)
commit87d5aed85b2d79e4075ad2ca1449e9b98f657a09
treefa8c4f5b110148b913c3f9b5663d7a95358d4fd4
parent140277e9a710202608914b5b731948d2769399bc
IB/ipath: Fix potentially wrong RNR retry counter returned in ipath_query_qp()

There can be a case where the requester's rnr retry counter
(s_rnr_retry) is less than the number of rnr retries allowed per QP
(s_rnr_retry_cnt).  This can happen if the s_rnr_retry counter is being
decremented and an ipath_query_qp call is issued during that time frame.
The fix is to always return the number of rnr retries allowed per QP
instead of the requester's rnr counter.

Found by code review.

Signed-off-by: Patrick Marchand Latifi <patrick.latifi@qlogic.com>
Acked-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/hw/ipath/ipath_qp.c