From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB0FCC00449 for ; Mon, 8 Oct 2018 06:06:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 587CC2086D for ; Mon, 8 Oct 2018 06:06:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 587CC2086D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726678AbeJHNQj (ORCPT ); Mon, 8 Oct 2018 09:16:39 -0400 Received: from mout.gmx.net ([212.227.15.15]:34551 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725842AbeJHNQi (ORCPT ); Mon, 8 Oct 2018 09:16:38 -0400 Received: from [192.168.20.60] ([92.116.184.237]) by mail.gmx.com (mrgmx002 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MDQUP-1fvKiv0FOn-00GreV; Mon, 08 Oct 2018 08:06:28 +0200 Received: from [192.168.20.60] ([92.116.184.237]) by mail.gmx.com (mrgmx002 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MDQUP-1fvKiv0FOn-00GreV; Mon, 08 Oct 2018 08:06:28 +0200 Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call To: Firoz Khan Cc: linux-parisc@vger.kernel.org, "James E . J . Bottomley" , Thomas Gleixner , Greg Kroah-Hartman , Philippe Ombredanne , Kate Stewart , y2038 Mailman List , Linux Kernel Mailing List , Linux-Arch , Arnd Bergmann , Deepa Dinamani , Marcin Juszkiewicz References: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org> <1538975801-13735-6-git-send-email-firoz.khan@linaro.org> From: Helge Deller Openpgp: preference=signencrypt Autocrypt: addr=deller@gmx.de; prefer-encrypt=mutual; keydata= xsBNBFDPIPYBCAC6PdtagIE06GASPWQJtfXiIzvpBaaNbAGgmd3Iv7x+3g039EV7/zJ1do/a y9jNEDn29j0/jyd0A9zMzWEmNO4JRwkMd5Z0h6APvlm2D8XhI94r/8stwroXOQ8yBpBcP0yX +sqRm2UXgoYWL0KEGbL4XwzpDCCapt+kmarND12oFj30M1xhTjuFe0hkhyNHkLe8g6MC0xNg KW3x7B74Rk829TTAtj03KP7oA+dqsp5hPlt/hZO0Lr0kSAxf3kxtaNA7+Z0LLiBqZ1nUerBh OdiCasCF82vQ4/y8rUaKotXqdhGwD76YZry9AQ9p6ccqKaYEzWis078Wsj7p0UtHoYDbABEB AAHNHEhlbGdlIERlbGxlciA8ZGVsbGVyQGdteC5kZT7CwJIEEwECADwCGwMGCwkIBwMCBhUI AgkKCwQWAgMBAh4BAheAFiEE9M/0wAvkPPtRU6Boh8nBUbUeOGQFAlrHzIICGQEACgkQh8nB UbUeOGT1GAgAt+EeoHB4DbAx+pZoGbBYp6ZY8L6211n8fSi7wiwgM5VppucJ+C+wILoPkqiU +ZHKlcWRbttER2oBUvKOt0+yDfAGcoZwHS0P+iO3HtxR81h3bosOCwek+TofDXl+TH/WSQJa iaitof6iiPZLygzUmmW+aLSSeIAHBunpBetRpFiep1e5zujCglKagsW78Pq0DnzbWugGe26A 288JcK2W939bT1lZc22D9NhXXRHfX2QdDdrCQY7UsI6g/dAm1d2ldeFlGleqPMdaaQMcv5+E vDOur20qjTlenjnR/TFm9tA1zV+K7ePh+JfwKc6BSbELK4EHv8J8WQJjfTphakYLVM7ATQRQ zyD2AQgA2SJJapaLvCKdz83MHiTMbyk8yj2AHsuuXdmB30LzEQXjT3JEqj1mpvcEjXrX1B3h +0nLUHPI2Q4XWRazrzsseNMGYqfVIhLsK6zT3URPkEAp7R1JxoSiLoh4qOBdJH6AJHex4CWu UaSXX5HLqxKl1sq1tO8rq2+hFxY63zbWINvgT0FUEME27Uik9A5t8l9/dmF0CdxKdmrOvGMw T770cTt76xUryzM3fAyjtOEVEglkFtVQNM/BN/dnq4jDE5fikLLs8eaJwsWG9k9wQUMtmLpL gRXeFPRRK+IT48xuG8rK0g2NOD8aW5ThTkF4apznZe74M7OWr/VbuZbYW443QQARAQABwsBf BBgBAgAJBQJQzyD2AhsMAAoJEIfJwVG1HjhkNTgH/idWz2WjLE8DvTi7LvfybzvnXyx6rWUs 91tXUdCzLuOtjqWVsqBtSaZynfhAjlbqRlrFZQ8i8jRyJY1IwqgvHP6PO9s+rIxKlfFQtqhl kR1KUdhNGtiI90sTpi4aeXVsOyG3572KV3dKeFe47ALU6xE5ZL5U2LGhgQkbjr44I3EhPWc/ lJ/MgLOPkfIUgjRXt0ZcZEN6pAMPU95+u1N52hmqAOQZvyoyUOJFH1siBMAFRbhgWyv+YE2Y ZkAyVDL2WxAedQgD/YCCJ+16yXlGYGNAKlvp07SimS6vBEIXk/3h5Vq4Hwgg0Z8+FRGtYZyD KrhlU0uMP9QTB5WAUvxvGy8= Message-ID: <22745bed-baf6-4f08-6801-3529021cf33e@gmx.de> Date: Mon, 8 Oct 2018 08:06:26 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:9uYmU3LmjfAJ+HDG+JWGG2r+pavFs+h+Kg2F7UDTTvXNPHi+zlG wSZS5xSdmA0r8KAwFOP6Hgx80G0fV0VX0ynGjUkkj7RztoyPVllxunfWW3843e7T8e5vB77 rhL2AF4jGXinVff1UNBkCoyR7DyFvgq5TUThNW8ZcMOFKeny6cg1krDjLc0qVkYEvxZc6EB L+LW8836i3HNB8iolpcGw== X-UI-Out-Filterresults: notjunk:1;V01:K0:6HLwKVputgs=:69R5WazUSGYugSKN2OQyhY UTNJE0nSxVv9JT7rpQPjMAWM2rr8Dwn/yOq0LVhNW/78KSIjXiTIs5oByqi9i9jeiZS/YItpn 6/2hGdHXc8lmnguD/R4nYP3Iu6Haeg+LuXor7Hh/g/WuAptCriiOoX+NHoSymUXNsjzlweOqv Xt0PZTp5rlA2+ma/QT5vwSbbZh5sgKyJ+tTldvTJRe05PPpceqDAemjcWUc1gRJ6iGay09H+x Y9nMLYYaad2Hq6lwjzyHZGC9brUq5ahy7l2omXAyP/HNqBpqDamhu0lBWXBI+9yUb8ejOP2tT cvTE9JQKchONgEzJBUwLnJEpnDTKOEeuSDeuexgbRVOQCIxfs96N0T2Gv3P0z07OJFCfrXwx2 y+hyoldwS1CmFRStPeR7ozs+mE9tDOIHrEWj4HHSGCxhzZ7MtIzqBeeGvxPQ9B3g4T4fVfBO9 sDOwt+1/QLdNBPU8Zka7klu63Q/8JDh0vamYkvxcn7gIRcyvpIhBApbFA0SG1dKQdBK0y40Ig kG7JAp7npjQE0HGL03/JvWby5LL+FBtXn/tcgRUflV8pVwpnik/BZs8mP1EvuT7S7kCtyUtc8 xHoABTQDK+g6XaLqnpTyBU9SiGyw0FezfJtBo13JJyzSx1loiTfYq4tKLj3xENovgeNSGC/u7 R6ZNXzdRPhpZOHdZFjBSyb+UYy4mwI7X14ysDZoZj8oSO+FMGVFDUUd/5EetzJ3rrM08XRuky dGdkJW1XOqyriCEqajZvEwzqhaUT9a/70I56+3y5hRuusk0a4dq+UurkpGquHYJiMQHDPnaGh 152rtaWmrpjekYx5DuYZm0UynSC5D8hemWCczsqbHVADBZt9bo= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08.10.2018 07:52, Firoz Khan wrote: > Hi Helge, > > On Mon, 8 Oct 2018 at 11:11, Helge Deller wrote: >> >> On 08.10.2018 07:16, Firoz Khan wrote: >>> Signed-off-by: Firoz Khan >>> --- >>> arch/parisc/kernel/syscalls/syscall.tbl | 3 ++- >>> 1 file changed, 2 insertions(+), 1 deletion(-) >>> >>> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl >>> index 4e85293..4334bb7 100644 >>> --- a/arch/parisc/kernel/syscalls/syscall.tbl >>> +++ b/arch/parisc/kernel/syscalls/syscall.tbl >>> @@ -349,4 +349,5 @@ >>> 347 common preadv2 sys_preadv2 compat_sys_preadv2 >>> 348 common pwritev2 sys_pwritev2 compat_sys_pwritev2 >>> 349 common statx sys_statx >>> -350 common io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents >>> \ No newline at end of file >>> +350 common io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents >>> +351 common rseq sys_rseq compat_sys_rseq >> >> You can't add the rseq syscall for parisc yet. >> It needs additional code in the kernel for parisc which hasn't been tested yet. >> See my initial untested patch at https://patchwork.kernel.org/patch/10495209/ > > Thanks for your update! > > When I compiled the kernel I got below warnings. > > :696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp] > :1335:2: warning: #warning syscall rseq not implemented [-Wcpp] > > I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this > syscall is gone. But we definitely have to keep rseq entry on parisc > architecture. I prefer to keep the warning for rseq for now. It reminds me that we still may want the rseq syscall. If the warning is a problem, you may simply add the __IGNORE_rseq define. > I can ignore this patch currently as your patch not yet tested. > > FYI, I have merged the system call table files based on our previous > discussions. > Please comment on that. I'll do after testing. Thanks! Helge > I would appreciate if you can perform a boot test without this patch > on the actual > platform. > > Firoz > >> >> Helge