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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: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 9A3C6120005 X-Stat-Signature: j7twx7fkrfwu557hprjq815spzzejms6 X-Rspam-User: X-HE-Tag: 1763867101-477884 X-HE-Meta: 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 TDc+5wEF 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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=report M=mm/ No functional change intended Reviewed-by: SeongJae Park Signed-off-by: Sahil Chandna --- 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 = 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=%ld\n", - nid, PTR_ERR(pgdat->kswapd)); + pr_err("Failed to start kswapd on node %d,ret=%pe\n", + nid, pgdat->kswapd); BUG_ON(system_state < SYSTEM_RUNNING); pgdat->kswapd = NULL; } else { -- 2.50.1