linux-kernel - Re: [PATCH v2 00/36] x86: Rewrite all syscall entries except native 64-bit

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Message-ID: <CAFLxGvyb2JUQWToh9oQpPEAaF1hPwo4Guujsf9kqasdzYvqcTA@mail.gmail.com>
Date:	Mon, 12 Oct 2015 20:30:03 +0200
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Andy Lutomirski <luto@...nel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Brian Gerst <brgerst@...il.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v2 00/36] x86: Rewrite all syscall entries except native 64-bit

On Fri, Oct 9, 2015 at 3:06 PM, Ingo Molnar <mingo@...nel.org> wrote:
> Ok, so I applied all of them to tip:x86/asm, in two phases, with small (stylistic)
> edits - it all seems to work fine for me so far, so I pushed it all out to -tip
> and linux-next.
>

FYI, this breaks the UML build:

  CC      arch/x86/um/sys_call_table_64.o
arch/x86/um/sys_call_table_64.c:49:1: error: unknown type name ‘sys_call_ptr_t’
 const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
 ^
arch/x86/um/sys_call_table_64.c:54:2: warning: initialization makes
integer from pointer without a cast [enabled by default]
  [0 ... __NR_syscall_max] = &sys_ni_syscall,
  ^
arch/x86/um/sys_call_table_64.c:54:2: warning: (near initialization
for ‘sys_call_table[0]’) [enabled by default]
arch/x86/um/sys_call_table_64.c:54:2: error: initializer element is
not computable at load time
arch/x86/um/sys_call_table_64.c:54:2: error: (near initialization for
‘sys_call_table[0]’)

Andy, I suspect UML's syscall.h needs the sys_call_ptr_t type too?

-- 
Thanks,
//richard
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