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GET /api/1.1/patches/2221165/?format=api
{ "id": 2221165, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2221165/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260407212333.59260-1-philmd@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260407212333.59260-1-philmd@linaro.org>", "date": "2026-04-07T21:23:33", "name": "[v10,19.5/21] linux-user/arm: Inline bswap_code()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "794dcddd3ae4dfff91fbf337d7d88a9c538b5c79", "submitter": { "id": 85046, "url": "http://patchwork.ozlabs.org/api/1.1/people/85046/?format=api", "name": "Philippe Mathieu-Daudé", "email": "philmd@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260407212333.59260-1-philmd@linaro.org/mbox/", "series": [ { "id": 499198, "url": "http://patchwork.ozlabs.org/api/1.1/series/499198/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499198", "date": "2026-04-07T21:23:33", "name": null, "version": 10, "mbox": "http://patchwork.ozlabs.org/series/499198/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2221165/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2221165/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=uUZc8UKM;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2a00:1450:4864:20::334;\n envelope-from=philmd@linaro.org; helo=mail-wm1-x334.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "bswap_code() is now used once in get_user_code_u32(),\ninline it and simplify removing dead system code.\n\nSigned-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>\n---\n target/arm/cpu.h | 16 ----------------\n linux-user/arm/cpu_loop.c | 10 ++++++++++\n 2 files changed, 10 insertions(+), 16 deletions(-)", "diff": "diff --git a/target/arm/cpu.h b/target/arm/cpu.h\nindex 657ff4ab20b..917e9919e8c 100644\n--- a/target/arm/cpu.h\n+++ b/target/arm/cpu.h\n@@ -2568,22 +2568,6 @@ static inline int sme_vq(CPUARMState *env)\n return EX_TBFLAG_A64(env->hflags, SVL) + 1;\n }\n \n-static inline bool bswap_code(bool sctlr_b)\n-{\n-#ifdef CONFIG_USER_ONLY\n- /* BE8 (SCTLR.B = 0, TARGET_BIG_ENDIAN = 1) is mixed endian.\n- * The invalid combination SCTLR.B=1/CPSR.E=1/TARGET_BIG_ENDIAN=0\n- * would also end up as a mixed-endian mode with BE code, LE data.\n- */\n- return TARGET_BIG_ENDIAN ^ sctlr_b;\n-#else\n- /* All code access in ARM is little endian, and there are no loaders\n- * doing swaps that need to be reversed\n- */\n- return 0;\n-#endif\n-}\n-\n enum {\n QEMU_PSCI_CONDUIT_DISABLED = 0,\n QEMU_PSCI_CONDUIT_SMC = 1,\ndiff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c\nindex 19874f4c727..24a66b52cee 100644\n--- a/linux-user/arm/cpu_loop.c\n+++ b/linux-user/arm/cpu_loop.c\n@@ -29,6 +29,16 @@\n #include \"user/page-protection.h\"\n #include \"target/arm/syndrome.h\"\n \n+static inline bool bswap_code(bool sctlr_b)\n+{\n+ /*\n+ * BE8 (SCTLR.B = 0, TARGET_BIG_ENDIAN = 1) is mixed endian.\n+ * The invalid combination SCTLR.B=1/CPSR.E=1/TARGET_BIG_ENDIAN=0\n+ * would also end up as a mixed-endian mode with BE code, LE data.\n+ */\n+ return TARGET_BIG_ENDIAN ^ sctlr_b;\n+}\n+\n #define get_user_code_u32(x, gaddr, env) \\\n ({ abi_long __r = get_user_u32((x), (gaddr)); \\\n if (!__r && bswap_code(arm_sctlr_b(env))) { \\\n", "prefixes": [ "v10", "19.5/21" ] }