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Mon, 17 Nov 2025 22:09:17 -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 Subject: [PATCH 2/3] mm/vmscan: use %pe to print PTR_ERR() values Date: Tue, 18 Nov 2025 11:38:50 +0530 Message-ID: <94ba6ef88d97eb1a5e20eeab9f913be8fdc46fd5.1763227530.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: rspam09 X-Rspamd-Queue-Id: 4D4CA1C0005 X-Stat-Signature: jzabnmrr8e4corpqmw5yb4ttf4oogktm X-Rspam-User: X-HE-Tag: 1763446159-367215 X-HE-Meta: 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 dFoBiqmw 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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 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