{"id":2225670,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225670/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260421120958.190430-3-mkchauras@gmail.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.1/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/"},"msgid":"<20260421120958.190430-3-mkchauras@gmail.com>","date":"2026-04-21T12:09:56","name":"[V12,2/4] powerpc/jump_label: adjust inline asm to be consistent","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"2688c65cddac038989da44064f159daa0b2fb495","submitter":{"id":92575,"url":"http://patchwork.ozlabs.org/api/1.1/people/92575/?format=json","name":"Mukesh Kumar Chaurasiya","email":"mkchauras@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260421120958.190430-3-mkchauras@gmail.com/mbox/","series":[{"id":500787,"url":"http://patchwork.ozlabs.org/api/1.1/series/500787/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=500787","date":"2026-04-21T12:09:54","name":"Rust support for powerpc","version":12,"mbox":"http://patchwork.ozlabs.org/series/500787/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225670/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225670/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=aeUBb0hC;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=112.213.38.117; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-19883-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)","lists.ozlabs.org;\n arc=none smtp.remote-ip=\"2607:f8b0:4864:20::533\"","lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com","lists.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=aeUBb0hC;\n\tdkim-atps=neutral","lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com\n (client-ip=2607:f8b0:4864:20::533; helo=mail-pg1-x533.google.com;\n envelope-from=mkchauras@gmail.com; receiver=lists.ozlabs.org)"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g0Llq5J56z1yGs\n\tfor ; Tue, 21 Apr 2026 22:10:31 +1000 (AEST)","from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4g0Llq4JfLz2yv7;\n\tTue, 21 Apr 2026 22:10:31 +1000 (AEST)","from mail-pg1-x533.google.com (mail-pg1-x533.google.com\n [IPv6:2607:f8b0:4864:20::533])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4g0Llp6Bptz2ySW\n\tfor ; Tue, 21 Apr 2026 22:10:30 +1000 (AEST)","by mail-pg1-x533.google.com with SMTP id\n 41be03b00d2f7-c741692db4cso1175833a12.1\n for ;\n Tue, 21 Apr 2026 05:10:30 -0700 (PDT)","from li-1a3e774c-28e4-11b2-a85c-acc9f2883e29.bl1-in.ibm.com\n ([129.41.58.4])\n by smtp.gmail.com with ESMTPSA id\n 41be03b00d2f7-c797701d9bfsm10045274a12.16.2026.04.21.05.10.20\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Tue, 21 Apr 2026 05:10:27 -0700 (PDT)"],"ARC-Seal":"i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776773431;\n\tcv=none;\n b=J+IV0w0MpFBL6o3Gwu2AJ9VsDh9SsqZxoNl3tYOGNMllMqGGVNpA9L/mKNi5Mlxutquw+cO7NDETYids+WBNwCrryoqSI+2LLpxaj3XYL5CPK3zMQrzqf/50SXZZdwZmLz+HxN/XQa0HCjxVRRIuAISaMJaDpEOHQRywkNaEDVbeX182iZlhnhNp8MDKiM7t/otvvctohWC6RNCILQwzIGBriVtWG3zS/g67/71jbROXOP2pXiVXTtzeiMiy+t3ceuNnKhyXAGulUzHXcqFuHEdtkmythVkw/uRyop6jQC91Up/TFv5E496wd81gzP3yCi0lDntGq/HvnxCxvdRDlA==","ARC-Message-Signature":"i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1776773431; c=relaxed/relaxed;\n\tbh=SIf376OZyXcpY0mdrIrP1nTWV/VE0v5g8114Fjjgl84=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=f6i+/lrxCcV2ppZOGMA8wcGbV0yXTG52B1XTDmLpav7hBljhBD7SkwOUHTPzlQ51ClIfZPf0pwTyveXayCo/odvMJLylKp2awLx/WEkh2o+mJl7xHjyY7jzlmbRSJQDP+caK0AfRRR68Ar92dh0nHC/DhiCKXs1LqCcYCqCNUNydHu8svCA5uTgfA/GdBp42WxZX1/0RHEBAawZkxxEi3Ez6Ia8QQjy+ugCiaqc5dZWn0sTI+2l4kmkSHtCHEahaqN7fdu/YjpZl32J+hjVbebdE7TzyN62m6/YuB+poL7SoRK0SPhVvGMXNR8d4Ube9hN3hyM0+iKGqQSjdnUoBIw==","ARC-Authentication-Results":"i=1; lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com; dkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=aeUBb0hC; dkim-atps=neutral;\n spf=pass (client-ip=2607:f8b0:4864:20::533; helo=mail-pg1-x533.google.com;\n envelope-from=mkchauras@gmail.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=gmail.com","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1776773429; x=1777378229;\n darn=lists.ozlabs.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=SIf376OZyXcpY0mdrIrP1nTWV/VE0v5g8114Fjjgl84=;\n b=aeUBb0hCV1WfNvi/hSHER420gOxxiSMBw3szsqmc9iB9AMYq6hLqO1DtQfxqYy93Hm\n 0QU+DmOunbXDTUj3gc5cK/jng84S0mUNz9L0BTdx8sUCH3nDSms59LVKv/bfh4rSxq+T\n 4CHa9+M51eZO7LJagHtNoYl4z+l7ICyC7xlpIZXJLIFmzBpITBbn8GCQZFYAjAlqlpwX\n D8C0/VRNWOpcP3ICgM3A0Rjxes3M6wZyijIBQLxW74EOoYr/WmRML20SDOCf3Yjk7r17\n nfodbfShsABn03+iqAeeCfK8q+NNeHgrHDTE55PdIgLJygGt3t3/j8I+MMtYlHJDmjoW\n BeNA==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1776773429; x=1777378229;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=SIf376OZyXcpY0mdrIrP1nTWV/VE0v5g8114Fjjgl84=;\n b=UePVg5ooAsQYFg7v18fA6WamnqwocjutJ0zs14Gp1WuBoss1v2yQZu650dUz6Wqu71\n i8I0togkM98Ys49aw2PgqvtauZiNdx+FQIH7XAG0IKRt26ZgR23hh5/XHByMCqDQ0EyB\n vWxvXbm9VSnLpbj/fy+O6LhzGwNxHPEP+Qx77HDKIbM0EhyI/45zpf9VxLGWR2lrESiq\n oTECc71Q8i2bKf9cH2XXbQFdG8sgpin+jBDaUyazBwv3iID6O6JYZQ7etBQvlPgmoe/y\n JYCBuE7sxrwvsKW7WT+/gXtXjUxgqkmny4VikyxcvcPpy3MDpl0JoqeBkPuSnXU8mj6W\n molw==","X-Forwarded-Encrypted":"i=1;\n AFNElJ/Sooro8c3o7aViuN+gePe4rgjs9svLR59AxnDMHepc0GoqEfIxjabWPQmVLkyxbRGVlqgNQR+DjBtlTfA=@lists.ozlabs.org","X-Gm-Message-State":"AOJu0YwPFQzyjLicGfoRjRKGjLzwaqaav+N5QBDfBt086hzeE2Uc2ogL\n\thIUjFijSO/Jc9+JJYdusZKtJgFlTPXEgGEunZW1I8fo7diMUMpKGBXYF","X-Gm-Gg":"AeBDieuRd2yS7VJNuFFe0i9qyuZOGL5ap9kDquC8mSRJtG3vHp5P1LsBV2gCnvFUHw+\n\tzKh+8nEv/EPFdnlSNI6g01vGAEW79LIW3/bST1rxpcy4CtUlWjpp9sipuVqc6SIe8/cBiFdBEga\n\tzD7mQutaB9Xb4mG4mrQM7wBMKm6Fy5SiCCg4/ADNChElASKt8dcDyRTDmS+v7A+thkT6jUZEjLP\n\tjjFvV+ryMw8QJ+bITZV1EXLxLgS68r3+jnTjLSRSzYNyPCBKx3HdYilfzrZKk1gP8M0PjUxWJYi\n\tJFQd6f19fWBHK27AEMgX9/yYuIvZefXhOUBnP7cTNHo/0ltCpZHMH3+ZJDY2Iz/bOKm3DJVQhu1\n\tLgu7HdR22emqwliWSeDvd1a0PkV4d4uiQLOg5boZ9KK5Bs+xYQO4P/CsjPhcR5PVKX97ie2Du5a\n\tI3q/I3ythBXIqTIw3HNbCOgoSUcDqWMOKIM+j1BVXBoDJCgMkNfkRUkMQtkuzuQsOMIuhkxJ4SC\n\tbaX52tomiIXsqsNaJUfngIwlw==","X-Received":"by 2002:a05:6a20:6a10:b0:3a2:edff:296b with SMTP id\n adf61e73a8af0-3a2edff3a32mr1965327637.21.1776773428601;\n Tue, 21 Apr 2026 05:10:28 -0700 (PDT)","From":"\"Mukesh Kumar Chaurasiya (IBM)\" ","To":"maddy@linux.ibm.com,\n\tmpe@ellerman.id.au,\n\tnpiggin@gmail.com,\n\tchleroy@kernel.org,\n\tpeterz@infradead.org,\n\tjpoimboe@kernel.org,\n\tjbaron@akamai.com,\n\taliceryhl@google.com,\n\trostedt@goodmis.org,\n\tardb@kernel.org,\n\tojeda@kernel.org,\n\tboqun@kernel.org,\n\tgary@garyguo.net,\n\tbjorn3_gh@protonmail.com,\n\tlossin@kernel.org,\n\ta.hindborg@kernel.org,\n\ttmgross@umich.edu,\n\tdakr@kernel.org,\n\tnathan@kernel.org,\n\tnick.desaulniers+lkml@gmail.com,\n\tmorbo@google.com,\n\tjustinstitt@google.com,\n\tlinuxppc-dev@lists.ozlabs.org,\n\tlinux-kernel@vger.kernel.org,\n\trust-for-linux@vger.kernel.org,\n\tllvm@lists.linux.dev","Cc":"\"Mukesh Kumar Chaurasiya (IBM)\" ","Subject":"[PATCH V12 2/4] powerpc/jump_label: adjust inline asm to be\n consistent","Date":"Tue, 21 Apr 2026 17:39:56 +0530","Message-ID":"<20260421120958.190430-3-mkchauras@gmail.com>","X-Mailer":"git-send-email 2.53.0","In-Reply-To":"<20260421120958.190430-1-mkchauras@gmail.com>","References":"<20260421120958.190430-1-mkchauras@gmail.com>","X-Mailing-List":"linuxppc-dev@lists.ozlabs.org","List-Id":"","List-Help":"","List-Owner":"","List-Post":"","List-Archive":",\n ","List-Subscribe":",\n ,\n ","List-Unsubscribe":"","Precedence":"list","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Spam-Status":"No, score=-0.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tDKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,\n\tSPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"Added support for a new macro ARCH_STATIC_BRANCH_ASM in powerpc\nto avoid duplication of inline asm between C and Rust. This is\ninline with 'commit aecaf181651c (\"jump_label: adjust inline asm to be consistent\")'\n\nCo-developed-by: Madhavan Srinivasan \nSigned-off-by: Madhavan Srinivasan \nReviewed-by: Alice Ryhl \nReviewed-by: Christophe Leroy (CS GROUP) \nReviewed-by: Gary Guo \nLink: https://github.com/Rust-for-Linux/linux/issues/105\nLink: https://github.com/linuxppc/issues/issues/451\nSigned-off-by: Mukesh Kumar Chaurasiya (IBM) \n---\n arch/powerpc/include/asm/jump_label.h | 23 +++++++++++++----------\n 1 file changed, 13 insertions(+), 10 deletions(-)","diff":"diff --git a/arch/powerpc/include/asm/jump_label.h b/arch/powerpc/include/asm/jump_label.h\nindex d4eaba459a0e..3016e9c8d6bc 100644\n--- a/arch/powerpc/include/asm/jump_label.h\n+++ b/arch/powerpc/include/asm/jump_label.h\n@@ -15,14 +15,20 @@\n #define JUMP_ENTRY_TYPE\t\tstringify_in_c(FTR_ENTRY_LONG)\n #define JUMP_LABEL_NOP_SIZE\t4\n \n+#define JUMP_TABLE_ENTRY(key, label)\t\t\t\\\n+\t\".pushsection __jump_table, \\\"aw\\\"\t\\n\\t\"\t\\\n+\t\".long 1b - ., \" label \" - .\t\t\\n\\t\"\t\\\n+\tJUMP_ENTRY_TYPE key \" - .\t\t\\n\\t\"\t\\\n+\t\".popsection \t\t\t\t\\n\\t\"\n+\n+#define ARCH_STATIC_BRANCH_ASM(key, label)\t\t\\\n+\t\"1:\tnop\t\t\t\t\\n\\t\"\t\\\n+\tJUMP_TABLE_ENTRY(key, label)\n+\n static __always_inline bool arch_static_branch(struct static_key *key, bool branch)\n {\n-\tasm goto(\"1:\\n\\t\"\n-\t\t \"nop # arch_static_branch\\n\\t\"\n-\t\t \".pushsection __jump_table, \\\"aw\\\"\\n\\t\"\n-\t\t \".long 1b - ., %l[l_yes] - .\\n\\t\"\n-\t\t JUMP_ENTRY_TYPE \"%c0 - .\\n\\t\"\n-\t\t \".popsection \\n\\t\"\n+\tasm goto(\n+\t\t ARCH_STATIC_BRANCH_ASM(\"%c0\", \"%l[l_yes]\")\n \t\t : : \"i\" (&((char *)key)[branch]) : : l_yes);\n \n \treturn false;\n@@ -34,10 +40,7 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key, bool\n {\n \tasm goto(\"1:\\n\\t\"\n \t\t \"b %l[l_yes] # arch_static_branch_jump\\n\\t\"\n-\t\t \".pushsection __jump_table, \\\"aw\\\"\\n\\t\"\n-\t\t \".long 1b - ., %l[l_yes] - .\\n\\t\"\n-\t\t JUMP_ENTRY_TYPE \"%c0 - .\\n\\t\"\n-\t\t \".popsection \\n\\t\"\n+\t\t JUMP_TABLE_ENTRY(\"%c0\", \"%l[l_yes]\")\n \t\t : : \"i\" (&((char *)key)[branch]) : : l_yes);\n \n \treturn false;\n","prefixes":["V12","2/4"]}