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| author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2017-10-17 11:39:09 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-10-18 19:22:53 -0500 |
| commit | e2bc5cde8c77e63d62d79a09eaa4459aea906506 (patch) | |
| tree | e2db5221a3d9b3a0d6834f1581c2ee580152c92c /core/direct-controls.c | |
| parent | 4bd4707d19e0ec689da011547a6a2489612fe772 (diff) | |
| download | skiboot-e2bc5cde8c77e63d62d79a09eaa4459aea906506.zip skiboot-e2bc5cde8c77e63d62d79a09eaa4459aea906506.tar.gz skiboot-e2bc5cde8c77e63d62d79a09eaa4459aea906506.tar.bz2 | |
core: direct-controls: Fix clearing of special wakeup
'special_wakeup_count' is incremented on successfully asserting
special wakeup. So we will never clear the special wakeup if we
check 'special_wakeup_count' to be zero. Fix this issue by checking
the 'special_wakeup_count' to 1 in dctl_clear_special_wakeup().
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'core/direct-controls.c')
| -rw-r--r-- | core/direct-controls.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/core/direct-controls.c b/core/direct-controls.c index c6834d7..512cb36 100644 --- a/core/direct-controls.c +++ b/core/direct-controls.c @@ -247,10 +247,13 @@ static int dctl_clear_special_wakeup(struct cpu_thread *t) return OPAL_UNSUPPORTED; lock(&c->dctl_lock); - if (c->special_wakeup_count == 0) + if (!c->special_wakeup_count) + goto out; + if (c->special_wakeup_count == 1) rc = p9_core_clear_special_wakeup(c); if (!rc) c->special_wakeup_count--; +out: unlock(&c->dctl_lock); return rc; |