Hi all,
On Fri, 7 Aug 2020 10:36:40 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> After merging the nfs tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
>
> In file included from include/trace/define_trace.h:102,
> from fs/nfs/nfs4trace.h:2316,
> from fs/nfs/nfs4trace.c:13:
> fs/nfs/./nfs4trace.h: In function 'trace_event_raw_event_nfs4_read_event':
> fs/nfs/./nfs4trace.h:1767:34: warning: unused variable 'lo' [-Wunused-variable]
> 1767 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/trace_events.h:707:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 707 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1759:3: note: in expansion of macro 'TP_fast_assign'
> 1759 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
> fs/nfs/./nfs4trace.h: In function 'trace_event_raw_event_nfs4_write_event':
> fs/nfs/./nfs4trace.h:1844:34: warning: unused variable 'lo' [-Wunused-variable]
> 1844 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/trace_events.h:707:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 707 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1836:3: note: in expansion of macro 'TP_fast_assign'
> 1836 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
> fs/nfs/./nfs4trace.h: In function 'trace_event_raw_event_nfs4_commit_event':
> fs/nfs/./nfs4trace.h:1917:34: warning: unused variable 'lo' [-Wunused-variable]
> 1917 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/trace_events.h:707:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 707 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1911:3: note: in expansion of macro 'TP_fast_assign'
> 1911 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
> In file included from include/trace/define_trace.h:103,
> from fs/nfs/nfs4trace.h:2316,
> from fs/nfs/nfs4trace.c:13:
> fs/nfs/./nfs4trace.h: In function 'perf_trace_nfs4_read_event':
> fs/nfs/./nfs4trace.h:1767:34: warning: unused variable 'lo' [-Wunused-variable]
> 1767 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 66 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1759:3: note: in expansion of macro 'TP_fast_assign'
> 1759 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
> fs/nfs/./nfs4trace.h: In function 'perf_trace_nfs4_write_event':
> fs/nfs/./nfs4trace.h:1844:34: warning: unused variable 'lo' [-Wunused-variable]
> 1844 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 66 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1836:3: note: in expansion of macro 'TP_fast_assign'
> 1836 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
> fs/nfs/./nfs4trace.h: In function 'perf_trace_nfs4_commit_event':
> fs/nfs/./nfs4trace.h:1917:34: warning: unused variable 'lo' [-Wunused-variable]
> 1917 | const struct pnfs_layout_hdr *lo = lseg ?
> | ^~
> include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
> 66 | { assign; } \
> | ^~~~~~
> fs/nfs/./nfs4trace.h:1911:3: note: in expansion of macro 'TP_fast_assign'
> 1911 | TP_fast_assign(
> | ^~~~~~~~~~~~~~
>
> Introduced by commit
>
> 34daa637f2b2 ("NFS: Add layout segment info to pnfs read/write/commit tracepoints")
I am still getting this warning ...
--
Cheers,
Stephen Rothwell
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