From 36527b9d882362567ceb4eea8666813280f30e6f Mon Sep 17 00:00:00 2001 From: Riwen Lu Date: Tue, 23 Aug 2022 15:43:42 +0800 Subject: [PATCH 1/4] ACPI: processor: Remove freq Qos request for all CPUs The freq Qos request would be removed repeatedly if the cpufreq policy relates to more than one CPU. Then, it would cause the "called for unknown object" warning. Remove the freq Qos request for each CPU relates to the cpufreq policy, instead of removing repeatedly for the last CPU of it. Fixes: a1bb46c36ce3 ("ACPI: processor: Add QoS requests for all CPUs") Reported-by: Jeremy Linton Tested-by: Jeremy Linton Signed-off-by: Riwen Lu Cc: 5.4+ # 5.4+ Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_thermal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index db6ac540e924..e534fd49a67e 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -151,7 +151,7 @@ void acpi_thermal_cpufreq_exit(struct cpufreq_policy *policy) unsigned int cpu; for_each_cpu(cpu, policy->related_cpus) { - struct acpi_processor *pr = per_cpu(processors, policy->cpu); + struct acpi_processor *pr = per_cpu(processors, cpu); if (pr) freq_qos_remove_request(&pr->thermal_req); From 06865077b34c792181e3c4f82417a2888c6e7453 Mon Sep 17 00:00:00 2001 From: Stefan Binding Date: Fri, 12 Aug 2022 14:06:45 +0100 Subject: [PATCH 2/4] ACPI: property: Fix type detection of unified integer reading functions The current code expects the type of the value to be an integer type, instead the value passed to the macro is a pointer. Ensure the size comparison uses the correct pointer type to choose the max value, instead of using the integer type. Fixes: 923044133367 ("ACPI: property: Unify integer value reading functions") Signed-off-by: Stefan Binding Reviewed-by: Sakari Ailus Tested-by: Sakari Ailus Tested-by: John Garry Acked-by: Ard Biesheuvel Signed-off-by: Rafael J. Wysocki --- drivers/acpi/property.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 7b3ad8ed2f4e..b1d4a8db89df 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -1043,10 +1043,10 @@ static int acpi_data_prop_read_single(const struct acpi_device_data *data, break; \ } \ if (__items[i].integer.value > _Generic(__val, \ - u8: U8_MAX, \ - u16: U16_MAX, \ - u32: U32_MAX, \ - u64: U64_MAX, \ + u8 *: U8_MAX, \ + u16 *: U16_MAX, \ + u32 *: U32_MAX, \ + u64 *: U64_MAX, \ default: 0U)) { \ ret = -EOVERFLOW; \ break; \ From 2ea3b19792dbe32287b0c48f3ff7e866f61967c7 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Wed, 24 Aug 2022 14:59:56 +0300 Subject: [PATCH 3/4] ACPI: property: Ignore already existing data node tags ACPI node pointers are attached to data node handles, in order to resolve string references to them. _DSD guide allows the same node to be reached from multiple parent nodes, leading the node enumeration algorithm to each such nodes more than once. As attached data already already exists, attaching data with the same tag will fail. Address this problem by ignoring nodes that have been already tagged. Fixes: 1d52f10917a7 ("ACPI: property: Tie data nodes to acpi handles") Reported-by: Pierre-Louis Bossart Signed-off-by: Sakari Ailus Tested-by: Pierre-Louis Bossart Signed-off-by: Rafael J. Wysocki --- drivers/acpi/property.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index b1d4a8db89df..91d0e75859d3 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -370,7 +370,7 @@ static bool acpi_tie_nondev_subnodes(struct acpi_device_data *data) bool ret; status = acpi_attach_data(dn->handle, acpi_nondev_subnode_tag, dn); - if (ACPI_FAILURE(status)) { + if (ACPI_FAILURE(status) && status != AE_ALREADY_EXISTS) { acpi_handle_err(dn->handle, "Can't tag data node\n"); return false; } From bd9594ae4c55351f134620ab890259820abf4c43 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Thu, 25 Aug 2022 14:17:15 +0300 Subject: [PATCH 4/4] ACPI: property: Remove default association from integer maximum values Remove the default association from integer maximum value checks. It is not necessary and has caused a bug in other associations being unnoticed. Fixes: 923044133367 ("ACPI: property: Unify integer value reading functions") Signed-off-by: Sakari Ailus Signed-off-by: Rafael J. Wysocki --- drivers/acpi/property.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 91d0e75859d3..d4c168ce428c 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -1046,8 +1046,7 @@ static int acpi_data_prop_read_single(const struct acpi_device_data *data, u8 *: U8_MAX, \ u16 *: U16_MAX, \ u32 *: U32_MAX, \ - u64 *: U64_MAX, \ - default: 0U)) { \ + u64 *: U64_MAX)) { \ ret = -EOVERFLOW; \ break; \ } \