linux-kernel - Re: [PATCH] remove binfmts.h from header exports

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Date:	Wed, 8 Aug 2007 00:37:07 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Olaf Hering <olaf@...fle.de>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] remove binfmts.h from header exports

On Tue, Aug 07, 2007 at 10:16:03PM +0200, Olaf Hering wrote:
> remove linux/binfmts.h from make headers_install
> 
> A recent patch added PAGE_SIZE to the part outside of __KERNEL__.
> qemu and ia32el have their own define of MAX_ARG_PAGES.

Should they use kernel header instead?

> No package uses linux/binfmts.h, so it is safe to not provide it.

And? Does it contain stuff which is userspace visible?
binfmts.h has at least CORENAME_MAX_SIZE and SUID_DUMP_*

"userspace doesn't use header" is something headers_install has never
been about.

> --- a/include/linux/Kbuild
> +++ b/include/linux/Kbuild
> @@ -173,7 +173,6 @@ unifdef-y += atm.h
>  unifdef-y += atm_tcp.h
>  unifdef-y += audit.h
>  unifdef-y += auto_fs.h
> -unifdef-y += binfmts.h
>  unifdef-y += capability.h
>  unifdef-y += capi.h
>  unifdef-y += cciss_ioctl.h
> --- a/include/linux/binfmts.h
> +++ b/include/linux/binfmts.h
> @@ -17,7 +17,6 @@ struct pt_regs;
>  /* sizeof(linux_binprm->buf) */
>  #define BINPRM_BUF_SIZE 128
>  
> -#ifdef __KERNEL__
>  
>  #define CORENAME_MAX_SIZE 128
>  
> @@ -99,5 +98,4 @@ extern void compute_creds(struct linux_b
>  extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
>  extern int set_binfmt(struct linux_binfmt *new);
>  
> -#endif /* __KERNEL__ */
>  #endif /* _LINUX_BINFMTS_H */

-
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