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From: Dmitry Safonov <dsafonov@virtuozzo.com>
To: kbuild test robot <lkp@intel.com>
Cc: <kbuild-all@01.org>, <linux-kernel@vger.kernel.org>,
	<luto@amacapital.net>, <tglx@linutronix.de>, <mingo@redhat.com>,
	<hpa@zytor.com>, <x86@kernel.org>, <akpm@linux-foundation.org>,
	<linux-mm@kvack.org>, <0x7f454c46@gmail.com>
Subject: Re: [PATCH] x86/vdso: add mremap hook to vm_special_mapping
Date: Mon, 11 Apr 2016 18:54:25 +0300	[thread overview]
Message-ID: <570BC8B1.7090303@virtuozzo.com> (raw)
In-Reply-To: <201604112306.pt7CJqPB%fengguang.wu@intel.com>

On 04/11/2016 06:41 PM, kbuild test robot wrote:
> Hi Dmitry,
>
> [auto build test WARNING on v4.6-rc3]
> [also build test WARNING on next-20160411]
> [cannot apply to tip/x86/vdso luto/next]
> [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
>
> url:    https://github.com/0day-ci/linux/commits/Dmitry-Safonov/x86-vdso-add-mremap-hook-to-vm_special_mapping/20160411-232653
> config: x86_64-randconfig-x000-201615 (attached as .config)
> reproduce:
>          # save the attached .config to linux build tree
>          make ARCH=x86_64
>
> All warnings (new ones prefixed by >>):
>
>     arch/x86/entry/vdso/vma.c: In function 'vdso_mremap':
>>> arch/x86/entry/vdso/vma.c:105:18: warning: unused variable 'regs' [-Wunused-variable]
>       struct pt_regs *regs = current_pt_regs();
>                       ^
Thanks, it should go with this:
--->8---
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 08ac59907cde..7e261e2554c8 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -102,7 +102,7 @@ static int vdso_fault(const struct 
vm_special_mapping *sm,
  static int vdso_mremap(const struct vm_special_mapping *sm,
                struct vm_area_struct *new_vma)
  {
-    struct pt_regs *regs = current_pt_regs();
+    struct pt_regs __maybe_unused *regs = current_pt_regs();

  #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
      /* Fixing userspace landing - look at do_fast_syscall_32 */

  reply	other threads:[~2016-04-11 15:55 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-11 15:22 [PATCH] x86/vdso: add mremap hook to vm_special_mapping Dmitry Safonov
2016-04-11 15:41 ` kbuild test robot
2016-04-11 15:54   ` Dmitry Safonov [this message]
2016-04-14 16:32 ` [PATCHv2] " Dmitry Safonov
2016-04-14 22:58   ` Andy Lutomirski
2016-04-15  8:46     ` Dmitry Safonov
2016-04-15  9:18     ` Ingo Molnar
2016-04-15  9:51       ` Dmitry Safonov
2016-04-15 12:08         ` Dmitry Safonov
2016-04-15 13:20 ` [PATCHv3 1/2] " Dmitry Safonov
2016-04-15 13:20   ` [PATCHv3 2/2] x86: rename is_{ia32,x32}_task to in_{ia32,x32}_syscall Dmitry Safonov
2016-04-15 16:52     ` Andy Lutomirski
2016-04-15 16:55       ` Dmitry Safonov
2016-04-15 13:53   ` [PATCHv3 1/2] x86/vdso: add mremap hook to vm_special_mapping kbuild test robot
2016-04-15 14:12 ` [PATCHv4 " Dmitry Safonov
2016-04-15 14:12   ` [PATCHv4 2/2] x86: rename is_{ia32,x32}_task to in_{ia32,x32}_syscall Dmitry Safonov
2016-04-15 16:58   ` [PATCHv4 1/2] x86/vdso: add mremap hook to vm_special_mapping Andy Lutomirski
2016-04-18 11:18     ` Dmitry Safonov
2016-04-18 15:37       ` Andy Lutomirski
2016-04-18 13:43 ` [PATCHv5 1/3] x86: rename is_{ia32,x32}_task to in_{ia32,x32}_syscall Dmitry Safonov
2016-04-18 13:43   ` [PATCHv5 2/3] x86/vdso: add mremap hook to vm_special_mapping Dmitry Safonov
2016-04-18 14:03     ` kbuild test robot
2016-04-18 14:17     ` [PATCHv6 " Dmitry Safonov
2016-04-18 14:23     ` [PATCHv7 " Dmitry Safonov
2016-04-20 16:22       ` Dmitry Safonov
2016-04-21 19:52       ` Andy Lutomirski
2016-04-22 10:45         ` Dmitry Safonov
2016-04-23 23:09     ` [PATCHv5 " kbuild test robot
2016-04-18 13:43   ` [PATCHv5 3/3] selftest/x86: add mremap vdso 32-bit test Dmitry Safonov
2016-04-21 20:01     ` Andy Lutomirski
2016-04-22 11:34       ` Dmitry Safonov
2016-04-19  9:34   ` [tip:x86/asm] x86/entry: Rename is_{ia32,x32}_task() to in_{ia32,x32}_syscall() tip-bot for Dmitry Safonov
2016-04-19 11:15     ` Ingo Molnar
2016-04-19 11:35       ` Borislav Petkov
2016-04-19 17:00         ` H. Peter Anvin
2016-04-19 16:04       ` Andy Lutomirski
2016-04-22  8:36         ` Ingo Molnar
2018-10-18  1:47     ` in_compat_syscall() returns from kernel thread for X86_32 NeilBrown
2018-10-18  2:37       ` Andy Lutomirski
2018-10-18  2:49         ` Al Viro
2018-10-18  4:36         ` NeilBrown
2018-10-18 17:26           ` Andy Lutomirski
2018-10-20  6:02             ` Andreas Dilger
2018-10-20  7:58               ` Andy Lutomirski
2018-10-24  1:47             ` NeilBrown
2018-10-24 13:15               ` Theodore Y. Ts'o
2018-10-24 14:32                 ` Theodore Y. Ts'o
2019-01-11 22:21                   ` Pavel Machek
2018-10-25  3:46                 ` NeilBrown
2018-10-25  4:45                   ` Andy Lutomirski
2016-04-25 11:37 ` [PATCHv8 1/2] x86/vdso: add mremap hook to vm_special_mapping Dmitry Safonov
2016-04-25 11:37   ` [PATCHv8 2/2] selftest/x86: add mremap vdso test Dmitry Safonov
2016-04-25 21:39     ` Andy Lutomirski
2016-04-25 21:38   ` [PATCHv8 1/2] x86/vdso: add mremap hook to vm_special_mapping Andy Lutomirski
     [not found]     ` <e0a10957-ddf7-1bc4-fad6-8b5836628fce@virtuozzo.com>
2016-05-05 11:52       ` Ingo Molnar
2016-05-05 11:55         ` Dmitry Safonov

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