From 02d7d31ae47030919f421ce43d71abca150365f6 Mon Sep 17 00:00:00 2001 From: Dev Jain Date: Fri, 22 Mar 2024 17:35:51 +0530 Subject: [PATCH] selftests/mm: parse VMA range in one go Use sscanf() to directly parse the VMA range. No functional change is intended. Link: https://lkml.kernel.org/r/20240322120551.818764-1-dev.jain@arm.com Signed-off-by: Dev Jain Cc: Anshuman Khandual Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/mlock2-tests.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) diff --git a/tools/testing/selftests/mm/mlock2-tests.c b/tools/testing/selftests/mm/mlock2-tests.c index 26f744188ad0..7f0d50fa361d 100644 --- a/tools/testing/selftests/mm/mlock2-tests.c +++ b/tools/testing/selftests/mm/mlock2-tests.c @@ -20,8 +20,6 @@ static int get_vm_area(unsigned long addr, struct vm_boundaries *area) FILE *file; int ret = 1; char line[1024] = {0}; - char *end_addr; - char *stop; unsigned long start; unsigned long end; @@ -37,21 +35,10 @@ static int get_vm_area(unsigned long addr, struct vm_boundaries *area) memset(area, 0, sizeof(struct vm_boundaries)); while(fgets(line, 1024, file)) { - end_addr = strchr(line, '-'); - if (!end_addr) { + if (sscanf(line, "%lx-%lx", &start, &end) != 2) { ksft_print_msg("cannot parse /proc/self/maps\n"); goto out; } - *end_addr = '\0'; - end_addr++; - stop = strchr(end_addr, ' '); - if (!stop) { - ksft_print_msg("cannot parse /proc/self/maps\n"); - goto out; - } - - sscanf(line, "%lx", &start); - sscanf(end_addr, "%lx", &end); if (start <= addr && end > addr) { area->start = start; -- 2.25.1