6.1-stable review patch. If anyone has any objections, please let me know.
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From: Pierre Gondois pierre.gondois@arm.com
[ Upstream commit fa4d566a605bc4cf32d69f16ef8cf9696635f75a ]
acpi_find_cache_levels() is used at a single place and is short enough to be merged into the calling function. The removal allows an easier renaming of the calling function in the next patch.
Also reorder the local variables in the 'reversed Christmas tree' order.
Signed-off-by: Pierre Gondois pierre.gondois@arm.com Reviewed-by: Jeremy Linton jeremy.linton@arm.com Acked-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Acked-by: Palmer Dabbelt palmer@rivosinc.com Link: https://lore.kernel.org/r/20230104183033.755668-5-pierre.gondois@arm.com Signed-off-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Wen Yang wen.yang@linux.dev Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/pptt.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-)
--- a/drivers/acpi/pptt.c +++ b/drivers/acpi/pptt.c @@ -286,19 +286,6 @@ static struct acpi_pptt_processor *acpi_ return NULL; }
-static int acpi_find_cache_levels(struct acpi_table_header *table_hdr, - u32 acpi_cpu_id) -{ - int number_of_levels = 0; - struct acpi_pptt_processor *cpu; - - cpu = acpi_find_processor_node(table_hdr, acpi_cpu_id); - if (cpu) - number_of_levels = acpi_count_levels(table_hdr, cpu); - - return number_of_levels; -} - static u8 acpi_cache_type(enum cache_type type) { switch (type) { @@ -621,9 +608,10 @@ static int check_acpi_cpu_flag(unsigned */ int acpi_find_last_cache_level(unsigned int cpu) { - u32 acpi_cpu_id; + struct acpi_pptt_processor *cpu_node; struct acpi_table_header *table; int number_of_levels = 0; + u32 acpi_cpu_id;
table = acpi_get_pptt(); if (!table) @@ -632,7 +620,10 @@ int acpi_find_last_cache_level(unsigned pr_debug("Cache Setup find last level CPU=%d\n", cpu);
acpi_cpu_id = get_acpi_id_for_cpu(cpu); - number_of_levels = acpi_find_cache_levels(table, acpi_cpu_id); + cpu_node = acpi_find_processor_node(table, acpi_cpu_id); + if (cpu_node) + number_of_levels = acpi_count_levels(table, cpu_node); + pr_debug("Cache Setup find last level level=%d\n", number_of_levels);
return number_of_levels;