linux-kernel - Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation

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Date:   Tue, 9 Oct 2018 10:26:48 +0530
From:   Firoz Khan <firoz.khan@...aro.org>
To:     Helge Deller <deller@....de>
Cc:     linux-parisc@...r.kernel.org,
        "James E . J . Bottomley" <jejb@...isc-linux.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        y2038 Mailman List <y2038@...ts.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Deepa Dinamani <deepa.kernel@...il.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@...aro.org>
Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation

Hi Helge,

On Tue, 9 Oct 2018 at 01:13, Helge Deller <deller@....de> wrote:
>
> On 08.10.2018 07:16, Firoz Khan wrote:
> > System call table generation script must be run to generate
> > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > will have changes which will invokes the script.
> >
> > This patch will generate unistd_32/64.h and syscall_table_
> > 32/64/c32.h files by the syscall table generation script
> > invoked by arch/parisc/Makefile and the generated files against
> > the removed files will be identical.
> >
> > The generated uapi header file will be included in uapi/asm/
> > unistd_32/64.h and generated system call table support file will
> > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> >
> > Signed-off-by: Firoz Khan <firoz.khan@...aro.org>
> ...
> > diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> > index f10d065..76e3a3b 100644
> > --- a/arch/parisc/include/uapi/asm/unistd.h
> > +++ b/arch/parisc/include/uapi/asm/unistd.h
> > @@ -2,374 +2,13 @@
> >  #ifndef _UAPI_ASM_PARISC_UNISTD_H_
> >  #define _UAPI_ASM_PARISC_UNISTD_H_
> >
> ...
> > -
> > -#ifdef __KERNEL__
> > -#define __NR_syscalls           351
> > +#define __NR_Linux           0
> > +#ifdef CONFIG_64BIT
>
> You can't use CONFIG_64BIT in an uapi header file.
> It's only defined inside the kernel when building the kernel.
> Please use
>         #ifdef __LP64__
> instead here.

Sure.  Thanks!
Firoz

>
> > +#include <asm/unistd_64.h>
> > +#else
> > +#include <asm/unistd_32.h>
> >  #endif