mm/kmemleak: fix print format of pointer in pr_debug()

With 0x%p, the pointer will be hashed and print (____ptrval____) instead.
And with 0x%pa, the pointer can be successfully printed but with duplicate
prefixes, which looks like:

 kmemleak: kmemleak_free(0x(____ptrval____))
 kmemleak: kmemleak_free_percpu(0x(____ptrval____))
 kmemleak: kmemleak_free_part_phys(0x0x0000000a1af86000)

Use 0x%px instead of 0x%p or 0x%pa to print the pointer. Then the print
will be like:

 kmemleak: kmemleak_free(0xffff9111c145b020)
 kmemleak: kmemleak_free_percpu(0x00000000000333b0)
 kmemleak: kmemleak_free_part_phys(0x0000000a1af80000)

Link: https://lkml.kernel.org/r/20231018102952.3339837-4-liushixin2@huawei.com
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Patrick Wang <patrick.wang.shcn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 54c2c90d3abc9de0ae7b3b4308eea5011794e322..289b3be5ee6eedd1b9102dab97f79cb2b18583c9 100644 (file)
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -975,7 +975,7 @@ static void object_no_scan(unsigned long ptr)
 void __ref kmemleak_alloc(const void *ptr, size_t size, int min_count,
                          gfp_t gfp)
 {
-       pr_debug("%s(0x%p, %zu, %d)\n", __func__, ptr, size, min_count);
+       pr_debug("%s(0x%px, %zu, %d)\n", __func__, ptr, size, min_count);
 
        if (kmemleak_enabled && ptr && !IS_ERR(ptr))
                create_object((unsigned long)ptr, size, min_count, gfp);
@@ -996,7 +996,7 @@ void __ref kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
 {
        unsigned int cpu;
 
-       pr_debug("%s(0x%p, %zu)\n", __func__, ptr, size);
+       pr_debug("%s(0x%px, %zu)\n", __func__, ptr, size);
 
        /*
         * Percpu allocations are only scanned and not reported as leaks
@@ -1020,7 +1020,7 @@ EXPORT_SYMBOL_GPL(kmemleak_alloc_percpu);
  */
 void __ref kmemleak_vmalloc(const struct vm_struct *area, size_t size, gfp_t gfp)
 {
-       pr_debug("%s(0x%p, %zu)\n", __func__, area, size);
+       pr_debug("%s(0x%px, %zu)\n", __func__, area, size);
 
        /*
         * A min_count = 2 is needed because vm_struct contains a reference to
@@ -1043,7 +1043,7 @@ EXPORT_SYMBOL_GPL(kmemleak_vmalloc);
  */
 void __ref kmemleak_free(const void *ptr)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_free_enabled && ptr && !IS_ERR(ptr))
                delete_object_full((unsigned long)ptr);
@@ -1061,7 +1061,7 @@ EXPORT_SYMBOL_GPL(kmemleak_free);
  */
 void __ref kmemleak_free_part(const void *ptr, size_t size)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_enabled && ptr && !IS_ERR(ptr))
                delete_object_part((unsigned long)ptr, size, false);
@@ -1079,7 +1079,7 @@ void __ref kmemleak_free_percpu(const void __percpu *ptr)
 {
        unsigned int cpu;
 
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_free_enabled && ptr && !IS_ERR(ptr))
                for_each_possible_cpu(cpu)
@@ -1100,7 +1100,7 @@ void __ref kmemleak_update_trace(const void *ptr)
        struct kmemleak_object *object;
        unsigned long flags;
 
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (!kmemleak_enabled || IS_ERR_OR_NULL(ptr))
                return;
@@ -1131,7 +1131,7 @@ EXPORT_SYMBOL(kmemleak_update_trace);
  */
 void __ref kmemleak_not_leak(const void *ptr)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_enabled && ptr && !IS_ERR(ptr))
                make_gray_object((unsigned long)ptr);
@@ -1149,7 +1149,7 @@ EXPORT_SYMBOL(kmemleak_not_leak);
  */
 void __ref kmemleak_ignore(const void *ptr)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_enabled && ptr && !IS_ERR(ptr))
                make_black_object((unsigned long)ptr, false);
@@ -1169,7 +1169,7 @@ EXPORT_SYMBOL(kmemleak_ignore);
  */
 void __ref kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_enabled && ptr && size && !IS_ERR(ptr))
                add_scan_area((unsigned long)ptr, size, gfp);
@@ -1187,7 +1187,7 @@ EXPORT_SYMBOL(kmemleak_scan_area);
  */
 void __ref kmemleak_no_scan(const void *ptr)
 {
-       pr_debug("%s(0x%p)\n", __func__, ptr);
+       pr_debug("%s(0x%px)\n", __func__, ptr);
 
        if (kmemleak_enabled && ptr && !IS_ERR(ptr))
                object_no_scan((unsigned long)ptr);
@@ -1203,7 +1203,7 @@ EXPORT_SYMBOL(kmemleak_no_scan);
  */
 void __ref kmemleak_alloc_phys(phys_addr_t phys, size_t size, gfp_t gfp)
 {
-       pr_debug("%s(0x%pa, %zu)\n", __func__, &phys, size);
+       pr_debug("%s(0x%px, %zu)\n", __func__, &phys, size);
 
        if (kmemleak_enabled)
                /*
@@ -1223,7 +1223,7 @@ EXPORT_SYMBOL(kmemleak_alloc_phys);
  */
 void __ref kmemleak_free_part_phys(phys_addr_t phys, size_t size)
 {
-       pr_debug("%s(0x%pa)\n", __func__, &phys);
+       pr_debug("%s(0x%px)\n", __func__, &phys);
 
        if (kmemleak_enabled)
                delete_object_part((unsigned long)phys, size, true);
@@ -1237,7 +1237,7 @@ EXPORT_SYMBOL(kmemleak_free_part_phys);
  */
 void __ref kmemleak_ignore_phys(phys_addr_t phys)
 {
-       pr_debug("%s(0x%pa)\n", __func__, &phys);
+       pr_debug("%s(0x%px)\n", __func__, &phys);
 
        if (kmemleak_enabled)
                make_black_object((unsigned long)phys, true);