ACPI: PPTT: Consistently use unsigned int as parameter type

The fourth parameter 'level' of function 'acpi_find_cache_level()' is
a signed interger, but its caller 'acpi_find_cache_node()' passes that
parameter an unsigned interger.

Make the paramter type inconsistency go away.

Signed-off-by: Tian Tao <tiantao6@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
[ rjw: Subject/changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c
index f31544d..4ae9335 100644 (file)
--- a/drivers/acpi/pptt.c
+++ b/drivers/acpi/pptt.c
@@ -98,11 +98,11 @@ static inline bool acpi_pptt_match_type(int table_type, int type)
  *
  * Return: The cache structure and the level we terminated with.
  */
-static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
-                               int local_level,
-                               struct acpi_subtable_header *res,
-                               struct acpi_pptt_cache **found,
-                               int level, int type)
+static unsigned int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
+                                        unsigned int local_level,
+                                        struct acpi_subtable_header *res,
+                                        struct acpi_pptt_cache **found,
+                                        unsigned int level, int type)
 {
        struct acpi_pptt_cache *cache;
 
@@ -119,7 +119,7 @@ static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
                        if (*found != NULL && cache != *found)
                                pr_warn("Found duplicate cache level/type unable to determine uniqueness\n");
 
-                       pr_debug("Found cache @ level %d\n", level);
+                       pr_debug("Found cache @ level %u\n", level);
                        *found = cache;
                        /*
                         * continue looking at this node's resource list
@@ -132,16 +132,17 @@ static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
        return local_level;
 }
 
-static struct acpi_pptt_cache *acpi_find_cache_level(struct acpi_table_header *table_hdr,
-                                                    struct acpi_pptt_processor *cpu_node,
-                                                    int *starting_level, int level,
-                                                    int type)
+static struct acpi_pptt_cache *
+acpi_find_cache_level(struct acpi_table_header *table_hdr,
+                     struct acpi_pptt_processor *cpu_node,
+                     unsigned int *starting_level, unsigned int level,
+                     int type)
 {
        struct acpi_subtable_header *res;
-       int number_of_levels = *starting_level;
+       unsigned int number_of_levels = *starting_level;
        int resource = 0;
        struct acpi_pptt_cache *ret = NULL;
-       int local_level;
+       unsigned int local_level;
 
        /* walk down from processor node */
        while ((res = acpi_get_pptt_resource(table_hdr, cpu_node, resource))) {
@@ -321,12 +322,12 @@ static struct acpi_pptt_cache *acpi_find_cache_node(struct acpi_table_header *ta
                                                    unsigned int level,
                                                    struct acpi_pptt_processor **node)
 {
-       int total_levels = 0;
+       unsigned int total_levels = 0;
        struct acpi_pptt_cache *found = NULL;
        struct acpi_pptt_processor *cpu_node;
        u8 acpi_type = acpi_cache_type(type);
 
-       pr_debug("Looking for CPU %d's level %d cache type %d\n",
+       pr_debug("Looking for CPU %d's level %u cache type %d\n",
                 acpi_cpu_id, level, acpi_type);
 
        cpu_node = acpi_find_processor_node(table_hdr, acpi_cpu_id);