[LU-14865] ppc64le build failure: llog_reader.c:887:9: error: format '%llu' expects argument of type 'long long unsigned int', but argument 2 has type '__u64' [-Werror=format=]

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Lustre 2.12.7, Lustre 2.15.0
• Labels: LTS12 llnl
• Environment: TOSS 3.7.9 (RHEL 7.9) power pc
• Severity: 3
• Assignee: Gian-Carlo Defazio
• Reporter: Gian-Carlo Defazio

Description

When building our local branch, which is based on v2_12_7, the ppc64le build fails due to a type error:

llog_reader.c:887:9: error: format '%llu' expects argument of type 'long long unsigned int', but argument 2 has type '__u64' [-Werror=format=]

This is due to a printf call that uses %llu whereas __le64_to_cpu returns a __u64. Elsewhere in the same file the return value of __le64_to_cpu is cast as necessary to match the print formatting, including to an unsigned long long.

Comments

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/48305/
Subject: LU-14865 utils: llog_reader.c printf type mismatch
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 2b29b8e5128f0ba63c026d6205f1f01e36d93353

[Gerrit Updater]

"Etienne AUJAMES <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48305
Subject: LU-14865 utils: llog_reader.c printf type mismatch
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 17bac0423afb25ed0d771dd17e677cf036522627

[Peter Jones]

Landed for 2.15

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/44346/
Subject: LU-14865 utils: llog_reader.c printf type mismatch
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 14b8276e06d6f4e3bfe785df1165458555e406f3

[Gian-Carlo Defazio]

For my notes, my local ticket is TOSS-5254