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Wed, 04 Feb 2026 10:54:36 -0800 (PST) From: Sahil Chandna To: akpm@linux-foundation.org, hannes@cmpxchg.org, yosry.ahmed@linux.dev, nphamcs@gmail.com, david@kernel.org, sj@kernel.org, mhocko@kernel.org, zhengqi.arch@bytedance.com, shakeel.butt@linux.dev, lorenzo.stoakes@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Sahil Chandna Subject: [PATCH v5 2/2] mm/zswap: use %pe to print error pointers Date: Thu, 5 Feb 2026 00:24:08 +0530 Message-ID: <581a26f22fb4c6ce04aeb7ee0d703fe64454ac7f.1770230135.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: 76CED1C0011 X-Stat-Signature: h9awiz4fgmp16txfkakozj8ypb5bce7m X-Rspam-User: X-HE-Tag: 1770231278-781786 X-HE-Meta: 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 tfqBKQm5 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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. Acked-by: Yosry Ahmed Acked-by: Nhat Pham Acked-by: David Hildenbrand (Red Hat) Reviewed-by: SeongJae Park Signed-off-by: Sahil Chandna --- Changes since v2: - Add Acked-by tag. link to v2: https://lore.kernel.org/all/0c00ceedce6e0d9aed35cee5faf15fd9126a1f70.1763796152.git.chandna.sahil@gmail.com/ link to v3: https://lore.kernel.org/all/57b7205813aa87c8f5c8bf765e5a8d88daeba68f.1764177933.git.chandna.sahil@gmail.com/ link to v4: https://lore.kernel.org/all/6d729a60eb71baade3670e5bb609a068683af3eb.1764312627.git.chandna.sahil@gmail.com/ --- mm/zswap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/zswap.c b/mm/zswap.c index 3d2d59ac3f9c..af3f0fbb0558 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -749,8 +749,8 @@ static int zswap_cpu_comp_prepare(unsigned int cpu, struct hlist_node *node) acomp = crypto_alloc_acomp_node(pool->tfm_name, 0, 0, cpu_to_node(cpu)); if (IS_ERR(acomp)) { - pr_err("could not alloc crypto acomp %s : %ld\n", - pool->tfm_name, PTR_ERR(acomp)); + pr_err("could not alloc crypto acomp %s : %pe\n", + pool->tfm_name, acomp); ret = PTR_ERR(acomp); goto fail; } -- 2.50.1