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SubjectRe: linux-next: build failure after merge of the pidfd tree
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On March 28, 2019 3:04:49 AM GMT+01:00, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>Hi Christian,
>
>After merging the pidfd tree, today's linux-next build (arm
>multi_v7_defconfig) failed like this:
>
>kernel/pid.c: In function '__do_sys_pidfd_open':
>kernel/pid.c:652:7: error: 'fd' redeclared as different kind of symbol
> long fd = -EINVAL;
> ^~
>In file included from kernel/pid.c:40:
>kernel/pid.c:649:46: note: previous definition of 'fd' was here
> SYSCALL_DEFINE4(pidfd_open, pid_t, pid, int, fd, int, pidfd,
> ~~~~~^~
>include/linux/syscalls.h:117:27: note: in definition of macro
>'__SC_DECL'
> #define __SC_DECL(t, a) t a
> ^
>include/linux/syscalls.h:112:35: note: in expansion of macro '__MAP3'
> #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
> ^~~~~~
>include/linux/syscalls.h:115:22: note: in expansion of macro '__MAP4'
> #define __MAP(n,...) __MAP##n(__VA_ARGS__)
> ^~~~~
>include/linux/syscalls.h:253:36: note: in expansion of macro '__MAP'
> static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
> ^~~~~
>include/linux/syscalls.h:226:2: note: in expansion of macro
>'__SYSCALL_DEFINEx'
> __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
> ^~~~~~~~~~~~~~~~~
>include/linux/syscalls.h:218:36: note: in expansion of macro
>'SYSCALL_DEFINEx'
>#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name,
>__VA_ARGS__)
> ^~~~~~~~~~~~~~~
>kernel/pid.c:649:1: note: in expansion of macro 'SYSCALL_DEFINE4'
> SYSCALL_DEFINE4(pidfd_open, pid_t, pid, int, fd, int, pidfd,
> ^~~~~~~~~~~~~~~
>kernel/pid.c:663:7: error: 'procfd' undeclared (first use in this
>function); did you mean 'pidfd'?
> if (procfd != -1 || pidfd != -1)
> ^~~~~~
> pidfd
>kernel/pid.c:663:7: note: each undeclared identifier is reported only
>once for each function it appears in
>
>Caused by commit
>
> 9170fba40db0 ("pid: add pidfd_open()")
>
>I have used the version of the pifd tree from next-20190327 for today.
>
>Please do *not* use linux-next as a development tree (I have seen
>several
>different version of this code over the past few days :-(). The rules
>for linux-next included code include:
>"
> * posted to the relevant mailing list,
> * reviewed by you (or another maintainer of your subsystem tree),
> * successfully unit tested, and
> * destined for the current or next Linux merge window.
>
>Basically, this should be just what you would send to Linus (or ask him
>to fetch)."

Yeah, that should not have ended up there.
This was caused by a faulty regex in my push script that pushes to different servers.
One of them always builds a kernel and runs the tests that come with all patches on the for-next and work branches.

Sorry about that. Should be fixed now.
Christian

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