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[175.34.8.244]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3153dd9be04sm41030387eec.9.2026.08.03.20.43.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Aug 2026 20:43:56 -0700 (PDT) Message-ID: Date: Tue, 4 Aug 2026 13:43:47 +1000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 03/11] arm_mpam: propagate MSC access errors for MBWU counters To: Andre Przywara , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Catalin Marinas , Will Deacon , "Rafael J . Wysocki" , Len Brown , James Morse , Ben Horgan , Reinette Chatre , Fenghua Yu Cc: Jonathan Cameron , Srivathsa L Rao , Ganapatrao Kulkarni , Trilok Soni , Srinivas Ramana , Niyas Sait , Lee Trager , Ritwick Sharma , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260731170324.2927758-1-andre.przywara@arm.com> <20260731170324.2927758-4-andre.przywara@arm.com> From: Gavin Shan In-Reply-To: <20260731170324.2927758-4-andre.przywara@arm.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: InG6QNUb5fyWMzv9mZgff-pX20VANmIIAiNSuf1lw2s_1785815038 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260803_204403_472535_3E45C28B X-CRM114-Status: GOOD ( 10.73 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 8/1/26 3:03 AM, Andre Przywara wrote: > Allow the mpam_msc_read_mbwu_l() function to return an error, and > propagate errors from the lower level up. This also changes the users > of this function. > > Signed-off-by: Andre Przywara > Reviewed-by: Jonathan Cameron > Reviewed-by: Ben Horgan > --- > drivers/resctrl/mpam_devices.c | 45 +++++++++++++++++++++++----------- > 1 file changed, 31 insertions(+), 14 deletions(-) > Reviewed-by: Gavin Shan