Re: [PATCH v10 1/7] parisc: start using signal-defs.h

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On Sun, Aug 30, 2020 at 10:07 AM Helge Deller <deller@xxxxxx> wrote:
>
> On 22.08.20 07:10, Peter Collingbourne wrote:
> > We currently include signal-defs.h on all architectures except parisc.
> > Make parisc fall in line. This will make maintenance easier once the
> > flag bits are moved here.
>
> The patch is basically OK, but....
>
> > Signed-off-by: Peter Collingbourne <pcc@xxxxxxxxxx>
> > ---
> > View this change in Gerrit: https://linux-review.googlesource.com/q/If03a5135fb514fe96548fb74610e6c3586a04064
> >
> >  arch/parisc/include/uapi/asm/signal.h  | 9 +--------
> >  include/uapi/asm-generic/signal-defs.h | 6 ++++++
> >  2 files changed, 7 insertions(+), 8 deletions(-)
> >
> > diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
> > index d38563a394f2..92a1c7ea44b4 100644
> > --- a/arch/parisc/include/uapi/asm/signal.h
> > +++ b/arch/parisc/include/uapi/asm/signal.h
> > @@ -69,14 +69,7 @@
> >  #define MINSIGSTKSZ  2048
> >  #define SIGSTKSZ     8192
> >
> > -
> > -#define SIG_BLOCK          0 /* for blocking signals */
> > -#define SIG_UNBLOCK        1 /* for unblocking signals */
> > -#define SIG_SETMASK        2 /* for setting the signal mask */
> > -
> > -#define SIG_DFL      ((__sighandler_t)0)     /* default signal handling */
> > -#define SIG_IGN      ((__sighandler_t)1)     /* ignore signal */
> > -#define SIG_ERR      ((__sighandler_t)-1)    /* error return from signal */
> > +#include <asm/signal-defs.h>
> >
> >  # ifndef __ASSEMBLY__
> >
> > diff --git a/include/uapi/asm-generic/signal-defs.h b/include/uapi/asm-generic/signal-defs.h
> > index e9304c95ceea..ecdf6312bfa5 100644
> > --- a/include/uapi/asm-generic/signal-defs.h
> > +++ b/include/uapi/asm-generic/signal-defs.h
> > @@ -15,8 +15,14 @@
> >  #endif
> >
> >  #ifndef __ASSEMBLY__
>
> > +#ifndef __hppa__
> > +/*
> > + * These have a special definition on parisc, see:
> > + * arch/parisc/include/uapi/asm/signal.h
> > + */
> >  typedef void __signalfn_t(int);
> >  typedef __signalfn_t __user *__sighandler_t;
>
> please drop this special-case/#ifdef for hppa/parisc.
> Instead please drop the typedef in arch/parisc/include/uapi/asm/signal.h,
> same as you did for the other architectures.
>
> I've committed this patch to my tree, which will collide with yours:
>  https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next
> If you like I can drop mine, and you fix it up on your side.
> Just let me know.
>
> Other than that you can add:
> Acked-by: Helge Deller <deller@xxxxxx>
>
> Thanks!

Thanks for the review and apologies for the delay in getting back to
you. I've picked up your patch from your for-next branch into my
series before this change, and removed the special case for hppa. I
also build tested my series on hppa which revealed a typo in the
#include directive which I fixed. The new patch looks like this and it
will be included in v11 which I will try to send out soon.

diff --git a/arch/parisc/include/uapi/asm/signal.h
b/arch/parisc/include/uapi/asm/signal.h
index f1fd4fa880d7..e67b1bfb82ba 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -69,14 +69,7 @@
 #define MINSIGSTKSZ    2048
 #define SIGSTKSZ       8192

-
-#define SIG_BLOCK          0   /* for blocking signals */
-#define SIG_UNBLOCK        1   /* for unblocking signals */
-#define SIG_SETMASK        2   /* for setting the signal mask */
-
-#define SIG_DFL        ((__sighandler_t)0)     /* default signal handling */
-#define SIG_IGN        ((__sighandler_t)1)     /* ignore signal */
-#define SIG_ERR        ((__sighandler_t)-1)    /* error return from signal */
+#include <asm-generic/signal-defs.h>

 # ifndef __ASSEMBLY__

@@ -85,10 +78,6 @@
 /* Avoid too many header ordering problems.  */
 struct siginfo;

-/* Type of a signal handler.  */
-typedef void __signalfn_t(int);
-typedef __signalfn_t __user *__sighandler_t;
-
 typedef struct sigaltstack {
        void __user *ss_sp;
        int ss_flags;

Peter



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