Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/1707778/?format=api
{ "id": 1707778, "url": "http://patchwork.ozlabs.org/api/patches/1707778/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-um/patch/20221122100759.208290-14-benjamin@sipsolutions.net/", "project": { "id": 60, "url": "http://patchwork.ozlabs.org/api/projects/60/?format=api", "name": "User-mode Linux Development", "link_name": "linux-um", "list_id": "linux-um.lists.infradead.org", "list_email": "linux-um@lists.infradead.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20221122100759.208290-14-benjamin@sipsolutions.net>", "list_archive_url": null, "date": "2022-11-22T10:07:44", "name": "[v2,13/28] um: Mark 32bit syscall helpers as clobbering memory", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "ef5cd2fb4b21134c8c0d02d1987332b011fbeaa5", "submitter": { "id": 67525, "url": "http://patchwork.ozlabs.org/api/people/67525/?format=api", "name": "Benjamin Berg", "email": "benjamin@sipsolutions.net" }, "delegate": { "id": 54851, "url": "http://patchwork.ozlabs.org/api/users/54851/?format=api", "username": "rw", "first_name": "Richard", "last_name": "Weinberger", "email": "richard@nod.at" }, "mbox": "http://patchwork.ozlabs.org/project/linux-um/patch/20221122100759.208290-14-benjamin@sipsolutions.net/mbox/", "series": [ { "id": 329466, "url": "http://patchwork.ozlabs.org/api/series/329466/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-um/list/?series=329466", "date": "2022-11-22T10:07:37", "name": "Implement SECCOMP based userland", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/329466/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1707778/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1707778/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org;\n envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=<UNKNOWN>)", "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=YJlzdfly;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256\n header.s=desiato.20200630 header.b=fBLZZU4R;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=sipsolutions.net header.i=@sipsolutions.net\n header.a=rsa-sha256 header.s=mail header.b=x4HAzsUF;\n\tdkim-atps=neutral" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4NGgRl1ycbz23nl\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 22 Nov 2022 21:27:15 +1100 (AEDT)", "from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oxQUc-007o3p-41; Tue, 22 Nov 2022 10:27:06 +0000", "from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05])\n\tby bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oxQTN-007nM8-1J\n\tfor linux-um@bombadil.infradead.org; Tue, 22 Nov 2022 10:25:49 +0000", "from s3.sipsolutions.net ([2a01:4f8:191:4433::2]\n helo=sipsolutions.net)\n\tby desiato.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oxQF1-003P1m-6V\n\tfor linux-um@lists.infradead.org; Tue, 22 Nov 2022 10:11:03 +0000", "by sipsolutions.net with esmtpsa\n (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256)\n\t(Exim 4.96)\n\t(envelope-from <benjamin@sipsolutions.net>)\n\tid 1oxQEp-006IGn-1m;\n\tTue, 22 Nov 2022 11:10:47 +0100" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:\n\tMessage-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=C37iWuxReGiLZkAfXWF1w5IRHGvzGpQ3i/Zp2vQGAAg=; b=YJlzdflykpGvEF\n\tP8E/blsT0xi2i7TjGPdxBZwb8+8eoqN8dsvacmoyrhbRslmx5Rciw5Y28cPwM4Up01SJsM7j++Xex\n\tS3kN65YrqmUUZT2WN7pMSYkwv1OYBKannyXGBEiVR7EdpBt2yBGgN1gEnyzVy0PD2pgybRV3/MB9g\n\tBPQOhd7B5a2JeDa4QKHdhpc8a8mUjBH7P1Z7uQVQpzYgn9iBOY+OhoYySitJyyxbnrG2VTDKdGiHX\n\tJ/hJ+ZsIDdp+iARVMwaIR3iDMaSBjl4XBrVd74s7QyDkZXdGBFOy+kts8l3x+GFQSQYqzzei7p8xu\n\tGf7lUFJUcI+tAy4hlqKw==;", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version\n\t:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:\n\tContent-Type:Content-ID:Content-Description;\n\tbh=C4+XHN7BBREUG7/PyU0yixAZ8+BaDGWADxsoILrdsfA=; b=fBLZZU4RoA3dBInuLFA+loWj1K\n\tOXTZdJ54qL2CWvJEaXiE7HmtgrEVxFTtZvexwYkR7sZdd7NbmtGTbRPIdlmQ35c9icr8mV/EwId+1\n\tpXGrla201I1/JZ2/F/v7SFwQTCz9hTY0jy+yWDpbld3zCXkYdc+SBymOX+USLM9qsc0t4E2++UO3+\n\tdlXSwAMx69fA51yzE7XeUB+qF3PhhybewYUGooFmLp0uwaiC08CrdABXAD+olYWEed3TSSdFU7B3U\n\tCMhyzYpPlMJ3lqicLjesscayI31vdUB4YqHbnviK9UrNPCdfT22pvlAOIU49pkyuDx9Lhlr/nUQ1h\n\t1A0/LQcA==;", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version:\n\tReferences:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender\n\t:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To:\n\tResent-Cc:Resent-Message-ID; bh=C4+XHN7BBREUG7/PyU0yixAZ8+BaDGWADxsoILrdsfA=;\n\tt=1669111857; x=1670321457; b=x4HAzsUFaecPFlgzdTHQ6YLAB+w3dGTicELpoCyey4kvuG3\n\tLZVFjHd+D+An6v/dFt2hCWhmHeTApC11N2NxuDBcQLXl0zDGTtoStOocF6RwKE34ko3JmNAVn4USP\n\ts+cs9JfigEHzGAFgNl/kLs9BaB1iJbe2MiC4Sf2wWorr83teutpW1+q+I6rlOoTa4lnwb6/AyCAoE\n\tKXarI5SRWDA4VAGL5pybVUpkg3b0uerLR2B9XLujwGMuV6R5aZxXRwEpyxmgyw0RiXdCgFeFfEcNA\n\tIoovT8Z8UuwUAY19no1t/H+80y8aisTRHq830xJ1h+ozTcsxHC4NMHVqdFx2uzZg==;" ], "From": "benjamin@sipsolutions.net", "To": "linux-um@lists.infradead.org", "Cc": "Benjamin Berg <benjamin@sipsolutions.net>", "Subject": "[PATCH v2 13/28] um: Mark 32bit syscall helpers as clobbering memory", "Date": "Tue, 22 Nov 2022 11:07:44 +0100", "Message-Id": "<20221122100759.208290-14-benjamin@sipsolutions.net>", "X-Mailer": "git-send-email 2.38.1", "In-Reply-To": "<20221122100759.208290-1-benjamin@sipsolutions.net>", "References": "<20221122100759.208290-1-benjamin@sipsolutions.net>", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20221122_101059_579325_3DC83FE6 ", "X-CRM114-Status": "UNSURE ( 7.38 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-0.2 (/)", "X-Spam-Report": "Spam detection software,\n running on the system \"desiato.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: From: Benjamin Berg <benjamin@sipsolutions.net> The 64bit\n helper are marked to clobber the memory,\n but the 32bit ones are not. Add the\n appropriate clobber to the 32bit helper routines so that the compiler\n cannot\n do invalid optimizations.\n Content analysis details: (-0.2 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's domain\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily\n valid\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature", "X-BeenThere": "linux-um@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<linux-um.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-um>,\n <mailto:linux-um-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-um/>", "List-Post": "<mailto:linux-um@lists.infradead.org>", "List-Help": "<mailto:linux-um-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-um>,\n <mailto:linux-um-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-um\" <linux-um-bounces@lists.infradead.org>", "Errors-To": "linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "From: Benjamin Berg <benjamin@sipsolutions.net>\n\nThe 64bit helper are marked to clobber the memory, but the 32bit ones\nare not. Add the appropriate clobber to the 32bit helper routines so\nthat the compiler cannot do invalid optimizations.\n\nSigned-off-by: Benjamin Berg <benjamin@sipsolutions.net>\n---\n arch/x86/um/shared/sysdep/stub_32.h | 18 ++++++++++++------\n 1 file changed, 12 insertions(+), 6 deletions(-)", "diff": "diff --git a/arch/x86/um/shared/sysdep/stub_32.h b/arch/x86/um/shared/sysdep/stub_32.h\nindex dc04d8cc2791..cdb3396679e1 100644\n--- a/arch/x86/um/shared/sysdep/stub_32.h\n+++ b/arch/x86/um/shared/sysdep/stub_32.h\n@@ -16,7 +16,8 @@ static __always_inline long stub_syscall0(long syscall)\n {\n \tlong ret;\n \n-\t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall));\n+\t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n@@ -25,7 +26,8 @@ static __always_inline long stub_syscall1(long syscall, long arg1)\n {\n \tlong ret;\n \n-\t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1));\n+\t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n@@ -35,7 +37,8 @@ static __always_inline long stub_syscall2(long syscall, long arg1, long arg2)\n \tlong ret;\n \n \t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1),\n-\t\t\t\"c\" (arg2));\n+\t\t\t\"c\" (arg2)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n@@ -46,7 +49,8 @@ static __always_inline long stub_syscall3(long syscall, long arg1, long arg2,\n \tlong ret;\n \n \t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1),\n-\t\t\t\"c\" (arg2), \"d\" (arg3));\n+\t\t\t\"c\" (arg2), \"d\" (arg3)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n@@ -57,7 +61,8 @@ static __always_inline long stub_syscall4(long syscall, long arg1, long arg2,\n \tlong ret;\n \n \t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1),\n-\t\t\t\"c\" (arg2), \"d\" (arg3), \"S\" (arg4));\n+\t\t\t\"c\" (arg2), \"d\" (arg3), \"S\" (arg4)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n@@ -68,7 +73,8 @@ static __always_inline long stub_syscall5(long syscall, long arg1, long arg2,\n \tlong ret;\n \n \t__asm__ volatile (\"int $0x80\" : \"=a\" (ret) : \"0\" (syscall), \"b\" (arg1),\n-\t\t\t\"c\" (arg2), \"d\" (arg3), \"S\" (arg4), \"D\" (arg5));\n+\t\t\t\"c\" (arg2), \"d\" (arg3), \"S\" (arg4), \"D\" (arg5)\n+\t\t\t: \"memory\");\n \n \treturn ret;\n }\n", "prefixes": [ "v2", "13/28" ] }