Change in osmo-bts[master]: lchan: Avoid applying transition changes if state new==old

[pespin]

pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-bts/+/25788 )

Change subject: lchan: Avoid applying transition changes if state new==old
......................................................................

lchan: Avoid applying transition changes if state new==old

Let's avoid running over state change conditions or even printing log
lines if there's no state change.

Change-Id: I1ca86aa846084f53751076643665cb6dabc26a06
---
M src/common/lchan.c
1 file changed, 2 insertions(+), 0 deletions(-)

Approvals:
  fixeria: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/src/common/lchan.c b/src/common/lchan.c
index 5e05c86..e06ea5c 100644
--- a/src/common/lchan.c
+++ b/src/common/lchan.c
@@ -257,6 +257,8 @@
 
 void lchan_set_state(struct gsm_lchan *lchan, enum gsm_lchan_state state)
 {
+	if (lchan->state == state)
+		return;
 	LOGPLCHAN(lchan, DL1C, LOGL_INFO, "state %s -> %s\n",
 		  gsm_lchans_name(lchan->state), gsm_lchans_name(state));
 	lchan->state = state;

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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: I1ca86aa846084f53751076643665cb6dabc26a06
Gerrit-Change-Number: 25788
Gerrit-PatchSet: 3
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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