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GET /api/1.1/patches/2221830/?format=api
{ "id": 2221830, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2221830/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260410120319.528318344@kernel.org/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.1/projects/2/?format=api", "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": "<20260410120319.528318344@kernel.org>", "date": "2026-04-10T12:20:50", "name": "[29/38] nios2: Select ARCH_HAS_RANDOM_ENTROPY", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ea28519e712cb6f96537ceb5e1630e6511ca1228", "submitter": { "id": 92397, "url": "http://patchwork.ozlabs.org/api/1.1/people/92397/?format=api", "name": "Thomas Gleixner", "email": "tglx@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260410120319.528318344@kernel.org/mbox/", "series": [ { "id": 499449, "url": "http://patchwork.ozlabs.org/api/1.1/series/499449/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=499449", "date": "2026-04-10T12:18:27", "name": "treewide: Cleanup LATCH, CLOCK_TICK_RATE and get_cycles() [ab]use", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499449/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2221830/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2221830/checks/", "tags": {}, "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19599-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "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=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=OB4z6rme;\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; 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Fri, 10 Apr 2026 22:20:55 +1000 (AEST)", "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n\tby sea.source.kernel.org (Postfix) with ESMTP id CF571438DE;\n\tFri, 10 Apr 2026 12:20:53 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 82A6BC2BCAF;\n\tFri, 10 Apr 2026 12:20:52 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1775823656;\n\tcv=none;\n b=MCJqcTgqGLf1mhtNhLFB7fi4ZxZrTTUpcN3GR7MPT6UxjzG1Evu91XlYoJprAsdIOw4bJYLJFQ47XHwJtelteXboX83+rDdGCrqG6YKOFxgwmxxy+wbQPSnKkGvfoY3n8cYVK4JoD7eW9n/5nrjQZm4s7gVr7ET5DLywq6yzroXgbSA5fcD8J+1Hm0LdD0q+CHSgqPhe0LjzQb10uUsSXYFRKt2GYVZVG/7rtFgHrmY1Jd8F16Cm7WXEEtHNgkbX6DGnXUUx6IA1/OEIKiMjSvedQp6w8uQCXwUJpTK5s2kCl/c4c5FKV0OKESgFsfF5+XmOJ1aLzbg/vlZ9PE00xw==", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1775823656; c=relaxed/relaxed;\n\tbh=wet7X8fxJTL0AwKIA3Km4njiBeu4Q2oQdaC3YcfBnuE=;\n\th=Date:Message-ID:From:To:Cc:Subject:References:MIME-Version:\n\t Content-Type;\n b=dWt2t2d6EcstXYVBbgJl7U//91n14fAlBfC12E/z9wTgng4g5Wm+GY39aFMI9F8lCHnDTd6onVLf+UAf3KIhP0X8i3AeMSFKBOC48luveI8tl668MqZrTD2Jb7tsOzkGBVV/YXpj644eRzAxEmKBY4GRTs4tw9w0DWOeKelvA8Mh+g3OJHIcZ45rgwokegHMt87DewDkoE3a+OIJ2+BIl4mp0J5dQPSL3mbPAOt6P2N4BjhxMBbcuZajmRfqk0EJfjUd/iP0nNMqoUwbLfZ7p3mbPhNNAQrkjc/pxkcCKD8DVw70aybQBJjPDO/kNJsTGOAIHjMoiIaqrgwL3Umr8Q==", "ARC-Authentication-Results": "i=1; lists.ozlabs.org;\n dmarc=pass (p=quarantine dis=none) header.from=kernel.org;\n dkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=OB4z6rme; dkim-atps=neutral;\n spf=pass (client-ip=172.234.252.31; helo=sea.source.kernel.org;\n envelope-from=tglx@kernel.org;\n receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775823653;\n\tbh=JK0/F7Ki9YiLWmMnKZ+Lr+3CWdB1is+mT2jM4Zqadew=;\n\th=Date:From:To:Cc:Subject:References:From;\n\tb=OB4z6rmedzjF/tihT238p7staUYI70l/WLyVpYQgd3G/0qlK9BetgUNbHaxUOTJJk\n\t qdDaLQwa1siZvXl47NXTJc0ORYA2dsT704qKM+lVSSRN4sldd+TbcnCJaaKLtMHkff\n\t SfKJlNkL5h8guSKmd0Me9uWsWZCYIBa85rKbdrV18Ca38UzELO7GQROVPWzrTHMCfJ\n\t QFdBWZuROAjUxl7+DX48sdEQxX7/xngz/AnUC+xaQ7wkdJF1oolh8aMOXz2mAve+hh\n\t C3LVdoPqlu6sGEaRdYNI50vZs10DhqwpaJqHFXY4YWja3gycAdllpb8XCooIJE8rT+\n\t LUw8ufY+z6WgQ==", "Date": "Fri, 10 Apr 2026 14:20:50 +0200", "Message-ID": "<20260410120319.528318344@kernel.org>", "User-Agent": "quilt/0.68", "From": "Thomas Gleixner <tglx@kernel.org>", "To": "LKML <linux-kernel@vger.kernel.org>", "Cc": "Dinh Nguyen <dinguyen@kernel.org>,\n Arnd Bergmann <arnd@arndb.de>,\n x86@kernel.org,\n Lu Baolu <baolu.lu@linux.intel.com>,\n iommu@lists.linux.dev,\n Michael Grzeschik <m.grzeschik@pengutronix.de>,\n netdev@vger.kernel.org,\n linux-wireless@vger.kernel.org,\n Herbert Xu <herbert@gondor.apana.org.au>,\n linux-crypto@vger.kernel.org,\n Vlastimil Babka <vbabka@kernel.org>,\n linux-mm@kvack.org,\n David Woodhouse <dwmw2@infradead.org>,\n Bernie Thompson <bernie@plugable.com>,\n linux-fbdev@vger.kernel.org,\n \"Theodore Tso\" <tytso@mit.edu>,\n linux-ext4@vger.kernel.org,\n Andrew Morton <akpm@linux-foundation.org>,\n Uladzislau Rezki <urezki@gmail.com>,\n Marco Elver <elver@google.com>,\n Dmitry Vyukov <dvyukov@google.com>,\n kasan-dev@googlegroups.com,\n Andrey Ryabinin <ryabinin.a.a@gmail.com>,\n Thomas Sailer <t.sailer@alumni.ethz.ch>,\n linux-hams@vger.kernel.org,\n \"Jason A. Donenfeld\" <Jason@zx2c4.com>,\n Richard Henderson <richard.henderson@linaro.org>,\n linux-alpha@vger.kernel.org,\n Russell King <linux@armlinux.org.uk>,\n linux-arm-kernel@lists.infradead.org,\n Catalin Marinas <catalin.marinas@arm.com>,\n Huacai Chen <chenhuacai@kernel.org>,\n loongarch@lists.linux.dev,\n Geert Uytterhoeven <geert@linux-m68k.org>,\n linux-m68k@lists.linux-m68k.org,\n Jonas Bonn <jonas@southpole.se>,\n linux-openrisc@vger.kernel.org,\n Helge Deller <deller@gmx.de>,\n linux-parisc@vger.kernel.org,\n Michael Ellerman <mpe@ellerman.id.au>,\n linuxppc-dev@lists.ozlabs.org,\n Paul Walmsley <pjw@kernel.org>,\n linux-riscv@lists.infradead.org,\n Heiko Carstens <hca@linux.ibm.com>,\n linux-s390@vger.kernel.org,\n \"David S. Miller\" <davem@davemloft.net>,\n sparclinux@vger.kernel.org", "Subject": "[patch 29/38] nios2: Select ARCH_HAS_RANDOM_ENTROPY", "References": "<20260410120044.031381086@kernel.org>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "X-Spam-Status": "No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "The only remaining non-architecture usage of get_cycles() is to provide\nrandom_get_entropy().\n\nSwitch nios2 over to the new scheme of selecting ARCH_HAS_RANDOM_ENTROPY\nand providing random_get_entropy() in asm/random.h.\n\nAdd 'asm/timex.h' includes to the relevant files, so the global include can\nbe removed once all architectures are converted over.\n\nSigned-off-by: Thomas Gleixner <tglx@kernel.org>\nCc: Dinh Nguyen <dinguyen@kernel.org>\n---\n arch/nios2/Kconfig | 1 +\n arch/nios2/include/asm/random.h | 14 ++++++++++++++\n arch/nios2/include/asm/timex.h | 5 +----\n arch/nios2/kernel/time.c | 4 ++--\n 4 files changed, 18 insertions(+), 6 deletions(-)", "diff": "--- a/arch/nios2/Kconfig\n+++ b/arch/nios2/Kconfig\n@@ -7,6 +7,7 @@ config NIOS2\n \tselect ARCH_HAS_SYNC_DMA_FOR_CPU\n \tselect ARCH_HAS_SYNC_DMA_FOR_DEVICE\n \tselect ARCH_HAS_DMA_SET_UNCACHED\n+\tselect ARCH_HAS_RANDOM_ENTROPY\n \tselect ARCH_NO_SWAP\n \tselect COMMON_CLK\n \tselect TIMER_OF\n--- /dev/null\n+++ b/arch/nios2/include/asm/random.h\n@@ -0,0 +1,14 @@\n+/* SPDX-License-Identifier: GPL-2.0-only */\n+#ifndef _ASM_NIOS2_RANDOM_H\n+#define _ASM_NIOS2_RANDOM_H\n+\n+#include <asm/timex.h>\n+\n+static inline unsigned long random_get_entropy(void)\n+{\n+\tunsigned long c = get_cycles();\n+\n+\treturn c ? c : random_get_entropy_fallback();\n+}\n+\n+#endif\n--- a/arch/nios2/include/asm/timex.h\n+++ b/arch/nios2/include/asm/timex.h\n@@ -5,9 +5,6 @@\n #ifndef _ASM_NIOS2_TIMEX_H\n #define _ASM_NIOS2_TIMEX_H\n \n-extern cycles_t get_cycles(void);\n-#define get_cycles get_cycles\n-\n-#define random_get_entropy() (((unsigned long)get_cycles()) ?: random_get_entropy_fallback())\n+cycles_t get_cycles(void);\n \n #endif\n--- a/arch/nios2/kernel/time.c\n+++ b/arch/nios2/kernel/time.c\n@@ -7,7 +7,6 @@\n * License. See the file \"COPYING\" in the main directory of this archive\n * for more details.\n */\n-\n #include <linux/export.h>\n #include <linux/interrupt.h>\n #include <linux/clockchips.h>\n@@ -19,6 +18,8 @@\n #include <linux/io.h>\n #include <linux/slab.h>\n \n+#include <asm/timex.h>\n+\n #define ALTR_TIMER_COMPATIBLE\t\t\"altr,timer-1.0\"\n \n #define ALTERA_TIMER_STATUS_REG\t0\n@@ -112,7 +113,6 @@ cycles_t get_cycles(void)\n \t\treturn nios2_timer_read(&nios2_cs.cs);\n \treturn 0;\n }\n-EXPORT_SYMBOL(get_cycles);\n \n static void nios2_timer_start(struct nios2_timer *timer)\n {\n", "prefixes": [ "29/38" ] }