linux-kernel - [BUILD FAILURE] nfs4state.c fails to compile with gcc 4.5.4

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Message-ID: <20171129215853.20172851@vmware.local.home>
Date:   Wed, 29 Nov 2017 21:58:53 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Trond Myklebust <trond.myklebust@...marydata.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [BUILD FAILURE] nfs4state.c fails to compile with gcc 4.5.4

Just letting you know that this commit:

fcd8843c406 ('NFSv4: Replace closed stateids with the "invalid special
stateid"') causes gcc 4.5.4 to fail the build with this error:

  CC [M]  fs/nfs/nfs4state.o
/work/git/linux-trace.git/fs/nfs/nfs4state.c:75:4: error: field name not in record or union initializer
/work/git/linux-trace.git/fs/nfs/nfs4state.c:75:4: error: (near initialization for 'invalid_stateid.<anonymous>.data')
/work/git/linux-trace.git/fs/nfs/nfs4state.c:75:4: warning: overflow in implicit constant conversion
/work/git/linux-trace.git/fs/nfs/nfs4state.c:76:4: error: field name not in record or union initializer
/work/git/linux-trace.git/fs/nfs/nfs4state.c:76:4: error: (near initialization for 'invalid_stateid.<anonymous>.data')
/work/git/linux-trace.git/fs/nfs/nfs4state.c:76:4: warning: braces around scalar initializer
/work/git/linux-trace.git/fs/nfs/nfs4state.c:76:4: warning: (near initialization for 'invalid_stateid.<anonymous>.data[1]')
make[3]: *** [/work/git/linux-trace.git/scripts/Makefile.build:310: fs/nfs/nfs4state.o] Error 1
make[2]: *** [/work/git/linux-trace.git/scripts/Makefile.build:569: fs/nfs] Error 2
make[1]: *** [/work/git/linux-trace.git/Makefile:1012: fs] Error 2
make[1]: Leaving directory '/work/git/nobackup/bxtest/trace'

Seems it can't handle the initialization of an anonymous struct within
an anonymous union.

I switched to gcc 4.6.3 and it compiles fine.

-- Steve