[PATCH 13/16] selftests/mm: protection_keys: Fix variables types mismatch warnings

[Muhammad Usama Anjum]

Fix variable type mismatch warnings.

Signed-off-by: Muhammad Usama Anjum <usama.an...@collabora.com>
---
 tools/testing/selftests/mm/protection_keys.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/mm/protection_keys.c 
b/tools/testing/selftests/mm/protection_keys.c
index 3a66798a8e8d6..ab1e586bc2728 100644
--- a/tools/testing/selftests/mm/protection_keys.c
+++ b/tools/testing/selftests/mm/protection_keys.c
@@ -78,7 +78,7 @@ static void cat_into_file(char *str, char *file)
        }
 
        ret = write(fd, str, strlen(str));
-       if (ret != strlen(str)) {
+       if (ret != (signed int)strlen(str)) {
                perror("write to file failed");
                fprintf(stderr, "filename: '%s' str: '%s'\n", file, str);
                exit(__LINE__);
@@ -597,10 +597,10 @@ struct pkey_malloc_record *pkey_last_malloc_record;
 static long nr_pkey_malloc_records;
 void record_pkey_malloc(void *ptr, long size, int prot)
 {
-       long i;
+       unsigned long i;
        struct pkey_malloc_record *rec = NULL;
 
-       for (i = 0; i < nr_pkey_malloc_records; i++) {
+       for (i = 0; i < (unsigned long)nr_pkey_malloc_records; i++) {
                rec = &pkey_malloc_records[i];
                /* find a free record */
                if (rec)
@@ -866,7 +866,7 @@ static int nr_test_fds;
 static void __save_test_fd(int fd)
 {
        pkey_assert(fd >= 0);
-       pkey_assert(nr_test_fds < ARRAY_SIZE(test_fds));
+       pkey_assert(nr_test_fds < (signed int)ARRAY_SIZE(test_fds));
        test_fds[nr_test_fds] = fd;
        nr_test_fds++;
 }
@@ -897,7 +897,7 @@ static void test_pkey_alloc_free_attach_pkey0(int *ptr, u16 
__attribute__((unuse
        int max_nr_pkey_allocs;
        int alloced_pkeys[NR_PKEYS];
        int nr_alloced = 0;
-       long size;
+       unsigned long size;
 
        pkey_assert(pkey_last_malloc_record);
        size = pkey_last_malloc_record->size;
@@ -1280,7 +1280,7 @@ static void test_pkey_init_state(int 
__attribute__((unused)) *ptr, u16 __attribu
  */
 static void test_mprotect_with_pkey_0(int *ptr, u16 pkey)
 {
-       long size;
+       unsigned long size;
        int prot;
 
        assert(pkey_last_malloc_record);
@@ -1530,7 +1530,7 @@ static void test_ptrace_modifies_pkru(int 
__attribute__((unused)) *ptr,
        pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
 
        xsave = (void *)malloc(xsave_size);
-       pkey_assert(xsave > 0);
+       pkey_assert(xsave != NULL);
 
        /* Modify the PKRU register directly */
        iov.iov_base = xsave;
@@ -1727,7 +1727,7 @@ static void run_tests_once(void)
        int *ptr;
        int prot = PROT_READ|PROT_WRITE;
 
-       for (test_nr = 0; test_nr < ARRAY_SIZE(pkey_tests); test_nr++) {
+       for (test_nr = 0; test_nr < (signed int)ARRAY_SIZE(pkey_tests); 
test_nr++) {
                int pkey;
                int orig_pkey_faults = pkey_faults;
 
-- 
2.39.5