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Sat, 22 Nov 2025 19:05:00 -0800 (PST) From: Sahil Chandna To: akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, hannes@cmpxchg.org, shakeel.butt@linux.dev, zhengqi.arch@bytedance.com, Liam.Howlett@oracle.com, weixugc@google.com, axelrasmussen@google.com, yuanchu@google.com, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Sahil Chandna , SeongJae Park Subject: [PATCH v2 2/3] mm/vmscan: use %pe to print error pointers Date: Sun, 23 Nov 2025 08:34:17 +0530 Message-ID: <64e15c6b2ce86d7824f54e9e001b6f5b44af48b8.1763796152.git.chandna.sahil@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the %pe printk format specifier to report error pointers directly instead of printing PTR_ERR() as a long value. This improves clarity, produces more readable error messages. This instance was flagged by the Coccinelle script (misc/ptr_err_to_pe.cocci) as an opportunity to adopt %pe. Found by: make coccicheck MODE=3Dreport M=3Dmm/ No functional change intended Reviewed-by: SeongJae Park Signed-off-by: Sahil Chandna Acked-by: David Hildenbrand (Red Hat) --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index b2fc8b626d3d..7d5b41696cc3 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -7500,8 +7500,8 @@ void __meminit kswapd_run(int nid) pgdat->kswapd =3D kthread_create_on_node(kswapd, pgdat, nid, "kswapd%d",= nid); if (IS_ERR(pgdat->kswapd)) { /* failure at boot is fatal */ - pr_err("Failed to start kswapd on node %d,ret=3D%ld\n", - nid, PTR_ERR(pgdat->kswapd)); + pr_err("Failed to start kswapd on node %d,ret=3D%pe\n", + nid, pgdat->kswapd); BUG_ON(system_state < SYSTEM_RUNNING); pgdat->kswapd =3D NULL; } else { --=20 2.50.1