From: Robin Murphy Date: Wed, 2 Jul 2025 14:08:13 +0000 (+0100) Subject: perf/arm: Add missing .suppress_bind_attrs X-Git-Tag: v6.12.43~233 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=280f6011ba9fbefd053f29a31c4cfbe7958d6739;p=thirdparty%2Fkernel%2Fstable.git perf/arm: Add missing .suppress_bind_attrs [ Upstream commit 860a831de138a7ad6bc86019adaf10eb84c02655 ] PMU drivers should set .suppress_bind_attrs so that userspace is denied the opportunity to pull the driver out from underneath an in-use PMU (with predictably unpleasant consequences). Somehow both the CMN and NI drivers have managed to miss this; put that right. Signed-off-by: Robin Murphy Reviewed-by: Leo Yan Link: https://lore.kernel.org/r/acd48c341b33b96804a3969ee00b355d40c546e2.1751465293.git.robin.murphy@arm.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index ff17e0f95fbb8..978b239ec10bd 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -2661,6 +2661,7 @@ static struct platform_driver arm_cmn_driver = { .name = "arm-cmn", .of_match_table = of_match_ptr(arm_cmn_of_match), .acpi_match_table = ACPI_PTR(arm_cmn_acpi_match), + .suppress_bind_attrs = true, }, .probe = arm_cmn_probe, .remove_new = arm_cmn_remove, diff --git a/drivers/perf/arm-ni.c b/drivers/perf/arm-ni.c index 4b9d53dae8978..fb09730a9aa0e 100644 --- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -710,6 +710,7 @@ static struct platform_driver arm_ni_driver = { .name = "arm-ni", .of_match_table = of_match_ptr(arm_ni_of_match), .acpi_match_table = ACPI_PTR(arm_ni_acpi_match), + .suppress_bind_attrs = true, }, .probe = arm_ni_probe, .remove = arm_ni_remove,