diff options
Diffstat (limited to '')
| -rw-r--r-- | mm/rodata_test.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/rodata_test.c b/mm/rodata_test.c index 5e313fa93276..6d783436951f 100644 --- a/mm/rodata_test.c +++ b/mm/rodata_test.c @@ -7,14 +7,15 @@ */ #define pr_fmt(fmt) "rodata_test: " fmt +#include <linux/rodata_test.h> #include <linux/uaccess.h> +#include <linux/mm.h> #include <asm/sections.h> static const int rodata_test_data = 0xC3; void rodata_test(void) { - unsigned long start, end; int zero = 0; /* test 1: read the value */ @@ -25,7 +26,7 @@ void rodata_test(void) } /* test 2: write to the variable; this should fault */ - if (!probe_kernel_write((void *)&rodata_test_data, + if (!copy_to_kernel_nofault((void *)&rodata_test_data, (void *)&zero, sizeof(zero))) { pr_err("test data was not read only\n"); return; @@ -38,13 +39,11 @@ void rodata_test(void) } /* test 4: check if the rodata section is PAGE_SIZE aligned */ - start = (unsigned long)__start_rodata; - end = (unsigned long)__end_rodata; - if (start & (PAGE_SIZE - 1)) { + if (!PAGE_ALIGNED(__start_rodata)) { pr_err("start of .rodata is not page size aligned\n"); return; } - if (end & (PAGE_SIZE - 1)) { + if (!PAGE_ALIGNED(__end_rodata)) { pr_err("end of .rodata is not page size aligned\n"); return; } |