From: Kevin Brodsky <kevin.brodsky@arm.com>
To: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org,
Kevin Brodsky <kevin.brodsky@arm.com>,
akpm@linux-foundation.org, aruna.ramakrishna@oracle.com,
catalin.marinas@arm.com, dave.hansen@linux.intel.com,
joey.gouly@arm.com, keith.lucas@oracle.com, ryan.roberts@arm.com,
shuah@kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, x86@kernel.org
Subject: [PATCH 02/14] selftests/mm: Fix -Wmaybe-uninitialized warnings
Date: Mon, 9 Dec 2024 09:50:07 +0000 [thread overview]
Message-ID: <20241209095019.1732120-3-kevin.brodsky@arm.com> (raw)
In-Reply-To: <20241209095019.1732120-1-kevin.brodsky@arm.com>
A few -Wmaybe-uninitialized warnings show up when building the mm
tests with -O2. None of them looks worrying; silence them by
initialising the problematic variables.
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
---
tools/testing/selftests/mm/ksm_tests.c | 2 +-
tools/testing/selftests/mm/mremap_test.c | 2 +-
tools/testing/selftests/mm/soft-dirty.c | 2 +-
tools/testing/selftests/mm/uffd-unit-tests.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/mm/ksm_tests.c b/tools/testing/selftests/mm/ksm_tests.c
index b748c48908d9..dcdd5bb20f3d 100644
--- a/tools/testing/selftests/mm/ksm_tests.c
+++ b/tools/testing/selftests/mm/ksm_tests.c
@@ -776,7 +776,7 @@ static int ksm_cow_time(int merge_type, int mapping, int prot, int timeout, size
int main(int argc, char *argv[])
{
- int ret, opt;
+ int ret = 0, opt;
int prot = 0;
int ksm_scan_limit_sec = KSM_SCAN_LIMIT_SEC_DEFAULT;
int merge_type = KSM_MERGE_TYPE_DEFAULT;
diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c
index 5a3a9bcba640..056b227f4a30 100644
--- a/tools/testing/selftests/mm/mremap_test.c
+++ b/tools/testing/selftests/mm/mremap_test.c
@@ -384,7 +384,7 @@ static void mremap_move_within_range(unsigned int pattern_seed, char *rand_addr)
static long long remap_region(struct config c, unsigned int threshold_mb,
char *rand_addr)
{
- void *addr, *src_addr, *dest_addr, *dest_preamble_addr;
+ void *addr, *src_addr, *dest_addr, *dest_preamble_addr = NULL;
unsigned long long t, d;
struct timespec t_start = {0, 0}, t_end = {0, 0};
long long start_ns, end_ns, align_mask, ret, offset;
diff --git a/tools/testing/selftests/mm/soft-dirty.c b/tools/testing/selftests/mm/soft-dirty.c
index bdfa5d085f00..8e1462ce0532 100644
--- a/tools/testing/selftests/mm/soft-dirty.c
+++ b/tools/testing/selftests/mm/soft-dirty.c
@@ -128,7 +128,7 @@ static void test_mprotect(int pagemap_fd, int pagesize, bool anon)
{
const char *type[] = {"file", "anon"};
const char *fname = "./soft-dirty-test-file";
- int test_fd;
+ int test_fd = 0;
char *map;
if (anon) {
diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c
index 74c884713bf7..9ff71fa1f9bf 100644
--- a/tools/testing/selftests/mm/uffd-unit-tests.c
+++ b/tools/testing/selftests/mm/uffd-unit-tests.c
@@ -1122,7 +1122,7 @@ uffd_move_test_common(uffd_test_args_t *targs, unsigned long chunk_size,
char c;
unsigned long long count;
struct uffd_args args = { 0 };
- char *orig_area_src, *orig_area_dst;
+ char *orig_area_src = NULL, *orig_area_dst = NULL;
unsigned long step_size, step_count;
unsigned long src_offs = 0;
unsigned long dst_offs = 0;
--
2.47.0
next prev parent reply other threads:[~2024-12-09 9:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-09 9:50 [PATCH 00/14] pkeys kselftests improvements Kevin Brodsky
2024-12-09 9:50 ` [PATCH 01/14] selftests/mm: Fix condition in uffd_move_test_common() Kevin Brodsky
2024-12-09 9:50 ` Kevin Brodsky [this message]
2024-12-09 9:50 ` [PATCH 03/14] selftests/mm: Fix strncpy() length Kevin Brodsky
2024-12-09 9:50 ` [PATCH 04/14] selftests/mm: Fix -Warray-bounds warnings in pkey_sighandler_tests Kevin Brodsky
2024-12-18 15:36 ` [PATCH] selftests/mm: Fix -Wnull-dereference on Clang Kevin Brodsky
2024-12-09 9:50 ` [PATCH 05/14] selftests/mm: Build with -O2 Kevin Brodsky
2025-01-07 17:01 ` [PATCH] selftests/mm: silence unused-result warnings Kevin Brodsky
2024-12-09 9:50 ` [PATCH 06/14] selftests/mm: Remove unused pkey helpers Kevin Brodsky
2024-12-09 9:50 ` [PATCH 07/14] selftests/mm: Define types using typedef in pkey-helpers.h Kevin Brodsky
2024-12-09 9:50 ` [PATCH 08/14] selftests/mm: Ensure pkey-*.h define inline functions only Kevin Brodsky
2024-12-09 9:50 ` [PATCH 09/14] selftests/mm: Remove empty pkey helper definition Kevin Brodsky
2024-12-09 9:50 ` [PATCH 10/14] selftests/mm: Ensure non-global pkey symbols are marked static Kevin Brodsky
2024-12-09 9:50 ` [PATCH 11/14] selftests/mm: Use sys_pkey helpers consistently Kevin Brodsky
2024-12-15 22:09 ` Alexander Gordeev
2024-12-16 9:28 ` [PATCH] selftests/mm: fix dependency on pkey_util.c Kevin Brodsky
2024-12-09 9:50 ` [PATCH 12/14] selftests/mm: Rename pkey register macro Kevin Brodsky
2024-12-09 9:50 ` [PATCH 13/14] selftests/mm: Skip pkey_sighandler_tests if support is missing Kevin Brodsky
2024-12-09 9:50 ` [PATCH 14/14] selftests/mm: Remove X permission from sigaltstack mapping Kevin Brodsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20241209095019.1732120-3-kevin.brodsky@arm.com \
--to=kevin.brodsky@arm.com \
--cc=akpm@linux-foundation.org \
--cc=aruna.ramakrishna@oracle.com \
--cc=catalin.marinas@arm.com \
--cc=dave.hansen@linux.intel.com \
--cc=joey.gouly@arm.com \
--cc=keith.lucas@oracle.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ryan.roberts@arm.com \
--cc=shuah@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox