diff options
| -rw-r--r-- | include/linux/rodata_test.h | 1 | ||||
| -rw-r--r-- | mm/rodata_test.c | 17 |
2 files changed, 9 insertions, 9 deletions
diff --git a/include/linux/rodata_test.h b/include/linux/rodata_test.h index ea05f6c51413..84766bcdd01f 100644 --- a/include/linux/rodata_test.h +++ b/include/linux/rodata_test.h @@ -14,7 +14,6 @@ #define _RODATA_TEST_H #ifdef CONFIG_DEBUG_RODATA_TEST -extern const int rodata_test_data; void rodata_test(void); #else static inline void rodata_test(void) {} diff --git a/mm/rodata_test.c b/mm/rodata_test.c index 0fd21670b513..6bb4deb12e78 100644 --- a/mm/rodata_test.c +++ b/mm/rodata_test.c @@ -9,11 +9,12 @@ * as published by the Free Software Foundation; version 2 * of the License. */ +#define pr_fmt(fmt) "rodata_test: " fmt + #include <linux/uaccess.h> #include <asm/sections.h> const int rodata_test_data = 0xC3; -EXPORT_SYMBOL_GPL(rodata_test_data); void rodata_test(void) { @@ -23,20 +24,20 @@ void rodata_test(void) /* test 1: read the value */ /* If this test fails, some previous testrun has clobbered the state */ if (!rodata_test_data) { - pr_err("rodata_test: test 1 fails (start data)\n"); + pr_err("test 1 fails (start data)\n"); return; } /* test 2: write to the variable; this should fault */ if (!probe_kernel_write((void *)&rodata_test_data, - (void *)&zero, sizeof(zero))) { - pr_err("rodata_test: test data was not read only\n"); + (void *)&zero, sizeof(zero))) { + pr_err("test data was not read only\n"); return; } /* test 3: check the value hasn't changed */ if (rodata_test_data == zero) { - pr_err("rodata_test: test data was changed\n"); + pr_err("test data was changed\n"); return; } @@ -44,13 +45,13 @@ void rodata_test(void) start = (unsigned long)__start_rodata; end = (unsigned long)__end_rodata; if (start & (PAGE_SIZE - 1)) { - pr_err("rodata_test: start of .rodata is not page size aligned\n"); + pr_err("start of .rodata is not page size aligned\n"); return; } if (end & (PAGE_SIZE - 1)) { - pr_err("rodata_test: end of .rodata is not page size aligned\n"); + pr_err("end of .rodata is not page size aligned\n"); return; } - pr_info("rodata_test: all tests were successful\n"); + pr_info("all tests were successful\n"); } |