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Marliere" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marliere.net; s=2023; t=1707053355; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=TmTYu8gBuYUWmnBfvEGkbpRkd3FkMWxeuI8Kl4keTd0=; b=M7Tk1yVt7h/LWhmNfKETeCcmBqV1jWVrzlYkHykLu8x7W8Ajlb1Fo24OiPCn/y8O7xp65y ODFKKh6zcl25QgnagvEkOjiw320KToUntOwm7oAX+ia9NJgZXoOxxhNttnSXhtoTXv5X6p 9W3r0Suk1Bqh0QAI+Jj3yPOjbVzxXUqSBiB8CNh0jYSiHjSw906OK54QK8kZx5k9kfAC6q 0f4yudcQguKBMniiPUux0x1o3knDUUzAOcqx4jwuOoPiWN3+TiGqQXJLtfLvXPW9UOQBaU 6jNdGwqctv1VLapFGeEFE0g7kAP8DSWJKUscTnwwJReNgiacuIWEttWnQ/R8YA== Authentication-Results: ORIGINATING; auth=pass smtp.auth=ricardo@marliere.net smtp.mailfrom=ricardo@marliere.net Date: Sun, 04 Feb 2024 10:29:39 -0300 Subject: [PATCH] perf: make pmu_bus const Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240204-bus_cleanup-events-v1-1-c779d1639c3a@marliere.net> X-B4-Tracking: v=1; b=H4sIAEKRv2UC/x3MSwqAMAwA0atI1hZiqRW9ioj4iRqQKo0WoXh3i 8u3mIkg5JkEmiyCp8DCh0so8gymbXArKZ6TQaM2qNGo8ZZ+2mlw96kokLtEVbYsbKmtwRohhae nhZ9/2nbv+wFGCfgtZAAAAA== To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Ricardo B. Marliere" X-Developer-Signature: v=1; a=openpgp-sha256; l=1072; i=ricardo@marliere.net; h=from:subject:message-id; bh=JM+4cXRZO8fIkL2koBG39D9ifJnLbSeAqF3/Wh6APII=; b=owEBbQKS/ZANAwAKAckLinxjhlimAcsmYgBlv5FDsFeQSd95hVHg2Xt7JWSdjbrkmuuTZxM8m skW7iQDSuCJAjMEAAEKAB0WIQQDCo6eQk7jwGVXh+HJC4p8Y4ZYpgUCZb+RQwAKCRDJC4p8Y4ZY plGqD/0WMQItUAk9/5riaS0MIkoCues5IFu6j0B5m52VK0WGGVGZuFf/99aPDd6o18zipSQVk0Z c70I5Li5OrOqZ2oWmAd+MP8YHV8Vq9IX+MfRNIkxgWExrLczruCmR2SKwyX6PHounpvcCLrVQgL Y8UkIV4rDk/DkiuVNGa0H3iVrO/1poyhY0cf5SBkxeEfvKvvrw8+wgBOmuMzzRSufkQ/ka+qHm7 qYqauNY02YK7gDUyjgVxQjDzI6qYfRZvzUgMEeO5zwzQxJJgNkRXBMhtFCAHb4pet3EsBfWFxlI PgiMWLzgceK7iG++temordVkRFEuXGVjLGoqSA411fokBmni1aRD9iNE3pTfkxY9aA87OGR0dlr RLr4XuPrq+GHKQ7WZG8TjA1NU9uENRqqZNdAkcpIGfjp183N7UGhZN/EuYYSVSgAP7oMQ0YZ2Q9 k6+vJieazPSBXfVM7zv8MPRLGMIAed62BEuUxiw+BCONCpTDwm98mfPVR/zE2NikPnTUiCZC80E c5BS9KeQAsfRTuNnJxYl+Z6DAqhLhj6BRyCgc4ZT1kvakrStiTI9R2xmrTuozfmvz82WFD5XIDU hakLJrmxlV/V5eJj2mrqRUq7DcnI6wvQWgCL85QDMJEACVf15yYUSAefG7wvXkJASIoTcet6OnB sewoLtzylSVdykw== X-Developer-Key: i=ricardo@marliere.net; a=openpgp; fpr=030A8E9E424EE3C0655787E1C90B8A7C638658A6 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789975208590678405 X-GMAIL-MSGID: 1789975208590678405 Now that the driver core can properly handle constant struct bus_type, move the pmu_bus variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman Suggested-by: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere Reviewed-by: Greg Kroah-Hartman Acked-by: Mark Rutland --- kernel/events/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: fdd041028f2294228e10610b4fca6a1a83ac683d change-id: 20240204-bus_cleanup-events-765165264090 Best regards, diff --git a/kernel/events/core.c b/kernel/events/core.c index 59b332cce9e7..decd994bfca4 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -11434,7 +11434,7 @@ static const struct attribute_group *pmu_dev_groups[] = { }; static int pmu_bus_running; -static struct bus_type pmu_bus = { +static const struct bus_type pmu_bus = { .name = "event_source", .dev_groups = pmu_dev_groups, };