From 93791c29b9a8ae6af336305ba0b9a42c24f21956 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 19 Jul 2022 12:42:48 +0300 Subject: [PATCH] tools/testing/selftests/vm/hugetlb-madvise.c: silence uninitialized variable warning This code just reads from memory without caring about the data itself. However static checkers complain that "tmp" is never properly initialized. Initialize it to zero and change the name to "dummy" to show that we don't care about the value stored in it. Link: https://lkml.kernel.org/r/YtZ8mKJmktA2GaHB@kili Fixes: c4b6cb884011 ("selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test") Signed-off-by: Dan Carpenter Cc: Mike Kravetz Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/vm/hugetlb-madvise.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/vm/hugetlb-madvise.c b/tools/testing/selftests/vm/hugetlb-madvise.c index 6c6af40f5747..3c9943131881 100644 --- a/tools/testing/selftests/vm/hugetlb-madvise.c +++ b/tools/testing/selftests/vm/hugetlb-madvise.c @@ -89,10 +89,11 @@ void write_fault_pages(void *addr, unsigned long nr_pages) void read_fault_pages(void *addr, unsigned long nr_pages) { - unsigned long i, tmp; + unsigned long dummy = 0; + unsigned long i; for (i = 0; i < nr_pages; i++) - tmp += *((unsigned long *)(addr + (i * huge_page_size))); + dummy += *((unsigned long *)(addr + (i * huge_page_size))); } int main(int argc, char **argv) -- 2.50.1