Change in osmo-pcu[master]: pcuif: Improve BTS-supported CS/MCS handling

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fixeria gerrit-no-reply at lists.osmocom.org
Sat Oct 31 12:42:52 UTC 2020


fixeria has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-pcu/+/20990 )

Change subject: pcuif: Improve BTS-supported CS/MCS handling
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Patch Set 1: Code-Review-1

(7 comments)

https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/bts.h 
File src/bts.h:

https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/bts.h@113 
PS1, Line 113: 	bool cs_supported[4];
Why not bit-masks?


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/gprs_bssgp_pcu.cpp 
File src/gprs_bssgp_pcu.cpp:

https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/gprs_bssgp_pcu.cpp@746 
PS1, Line 746: sizeof
I would not make such assumptions that sizeof(bool) is always 1; it's safer to ARRAY_SIZE here. But using a bit-mask is even better, as I already pointed in another comment.


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/gprs_bssgp_pcu.cpp@749 
PS1, Line 749: break
Also, what if none of the MCS variants is supported? Would we leave 'num' uninitialized?


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/gprs_bssgp_pcu.cpp@769 
PS1, Line 769: break
Same here, but in this case it's less likely given that CS-1 is mandatory AFAIR.


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/pcu_l1_if.cpp 
File src/pcu_l1_if.cpp:

https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/pcu_l1_if.cpp@619 
PS1, Line 619: 		
two tabs? why?


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/pcu_l1_if.cpp@621 
PS1, Line 621: any_cs_supported
What is the motivation here? If the BTS indicates that none is supported, then it's a bug.


https://gerrit.osmocom.org/c/osmo-pcu/+/20990/1/src/pcu_l1_if.cpp@625 
PS1, Line 625: 	if (!any_cs_supported) /* We need at least 1 CS, let's enable CS1 */
What is the motivation here? If the BTS indicates that none is supported, then it's a bug.



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Gerrit-Project: osmo-pcu
Gerrit-Branch: master
Gerrit-Change-Id: Ie8f0215ba17da1e545e98bec9325c02f1e8efaea
Gerrit-Change-Number: 20990
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Comment-Date: Sat, 31 Oct 2020 12:42:52 +0000
Gerrit-HasComments: Yes
Gerrit-Has-Labels: Yes
Gerrit-MessageType: comment
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