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Thu, 07 Mar 2024 11:05:55 -0800 (PST) Received: from charlie.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id h3-20020a170902680300b001dd526af36csm1747338plk.295.2024.03.07.11.05.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Mar 2024 11:05:55 -0800 (PST) From: Charlie Jenkins Date: Thu, 07 Mar 2024 11:05:46 -0800 Subject: [PATCH v8 2/4] riscv: Only check online cpus for emulated accesses MIME-Version: 1.0 Message-Id: <20240307-disable_misaligned_probe_config-v8-2-55d696cb398b@rivosinc.com> References: <20240307-disable_misaligned_probe_config-v8-0-55d696cb398b@rivosinc.com> In-Reply-To: <20240307-disable_misaligned_probe_config-v8-0-55d696cb398b@rivosinc.com> To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Jisheng Zhang , Evan Green , =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Eric Biggers , Elliot Berman , Charles Lohr , Conor Dooley Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Charlie Jenkins X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; 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X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The unaligned access checker only sets valid values for online cpus. Check for these values on online cpus rather than on present cpus. Signed-off-by: Charlie Jenkins Reviewed-by: Conor Dooley Fixes: 71c54b3d169d ("riscv: report misaligned accesses emulation to hwprobe") --- arch/riscv/kernel/traps_misaligned.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c index 8ded225e8c5b..c2ed4e689bf9 100644 --- a/arch/riscv/kernel/traps_misaligned.c +++ b/arch/riscv/kernel/traps_misaligned.c @@ -632,7 +632,7 @@ void unaligned_emulation_finish(void) * accesses emulated since tasks requesting such control can run on any * CPU. */ - for_each_present_cpu(cpu) { + for_each_online_cpu(cpu) { if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_EMULATED) { return;