From nobody Mon Apr 6 09:15:06 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9491D2E6CB3 for ; Fri, 20 Mar 2026 07:32:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.3 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991954; cv=none; b=FqM4RxjtWv4o9HE0XUQL1Y7xT4FTkVE8Fl7O/eDlbmgkX4IqpGWruD/HgxxCCqskHZSmlOiSL/ZSUfcNykVT7/iJvsB+fTB0PHe3Gs5kKO9gck/HJKXAseRo7dn7HlkWzDBgmQC+xa5HrOsbC3A8KjyfDN7Ci4sygaucxJwj01w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991954; c=relaxed/simple; bh=kpmutfRQG7k+5qhkCTI1yXPSPAP674b5pgfM3dCv434=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gPyusuH9NPKxl8+vI5WiELt078EpbCvqJ7jk+Evwr5Lv85JGshnZ/cLtWjnyTEcrGfs+XKB+ufFWIhneFz9RKR9LzO4uHCh2HjVpBCUd8LloE4vlLYwzCYNtYtcHUl7Ck8ZaHvA2Ww5LD30xpPJ6BzsBRReTYk77iPZtTK8yVX4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=DSzuaiSB; arc=none smtp.client-ip=117.135.210.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="DSzuaiSB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=Ax v3kt0/X+Ju3helrk5fBsUgAvH/ndDA/ivuh3VEB6s=; b=DSzuaiSB5slpM0xhlH aBYUuG2zsNmYMMUuQ9NnJVODwUEIprXyEk5SROSq4yJ2qHAa5cqbPFe8+qGKi34e b12SGXEAcvc/pLqxozPy9jHRrBg85SepiOeQFmUXI2LY1TkD0AzLEOwapRPrAdTB Nq2n57im9gtanfX0By0t8i/DA= Received: from neo-TianYi510Pro-15ICK.. (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wCnYRfT97xpLMlnAQ--.10124S3; Fri, 20 Mar 2026 15:31:50 +0800 (CST) From: liuqiangneo@163.com To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Qiang Liu Subject: [PATCH 1/2] drm/debugfs: Replace seq_printf with seq_puts for constant strings Date: Fri, 20 Mar 2026 15:31:27 +0800 Message-ID: <20260320073129.145575-2-liuqiangneo@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260320073129.145575-1-liuqiangneo@163.com> References: <20260320073129.145575-1-liuqiangneo@163.com> 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 X-CM-TRANSID: _____wCnYRfT97xpLMlnAQ--.10124S3 X-Coremail-Antispam: 1Uf129KBjvJXoW7Jw4UuFy3Jw15JrW3Xw4DXFb_yoW8JF1Dpa 9xCF90kr40yF45KryxA3WDZryfG3ZIvFySgrZrXw15Cry5Zr4UXryYga12yrykWr97Cw4Y qFsYgFWUWwn8uaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jTKZJUUUUU= X-CM-SenderInfo: 5olx1xxdqj0vrr6rljoofrz/xtbC-AbAImm89+Yg9wAA3L Content-Type: text/plain; charset="utf-8" From: Qiang Liu Replace seq_printf() with seq_puts() when printing constant strings without format specifiers. This is more efficient as seq_puts() doesn't need to parse the format string. Signed-off-by: Qiang Liu --- drivers/gpu/drm/drm_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index ae1c6126c2c5..f9658bdf703e 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -66,7 +66,7 @@ static int drm_name_info(struct seq_file *m, void *data) seq_printf(m, " master=3D%s", master->unique); if (dev->unique) seq_printf(m, " unique=3D%s", dev->unique); - seq_printf(m, "\n"); + seq_puts(m, "\n"); mutex_unlock(&dev->master_mutex); =20 return 0; @@ -139,7 +139,7 @@ static int drm_gem_name_info(struct seq_file *m, void *= data) struct drm_debugfs_entry *entry =3D m->private; struct drm_device *dev =3D entry->dev; =20 - seq_printf(m, " name size handles refcount\n"); + seq_puts(m, " name size handles refcount\n"); =20 mutex_lock(&dev->object_name_lock); idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m); --=20 2.43.0 From nobody Mon Apr 6 09:15:06 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A25892FF65B for ; Fri, 20 Mar 2026 07:32:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991952; cv=none; b=ieji4UKHsjU1Q+TWM0+BQp3qOWEcYbm07/7Db25mqywaJNHwrd6ThwyPS57jzsRmhZIJF+njeXVl7IvlRccZPg/BcB+N7ynMnDRBQZBNTATYo7DVZsu8BZO01D1+o51iM3MQ036hFkWsl5DeXOaSy9AmTjq+uhZjbFIHImohm0A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991952; c=relaxed/simple; bh=jqXJtHaDxL/17DPdji0Ii66nhYzYQbusf+ugFUCWVUY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZgmYTYrJhhH8RpO1ncX45o7U4kgKzJ77tGavJyXWBim648V9nNqnW4MtaF/6balrz+Kc3D9GYnmMouNtb8KiJTIAfjZNkBQA6pdKthev4hDI8gYB7jf+pDv5KrMaynqqi5ga1un7gS57Z9onsgaXvSn9SRaw8audVlH+B+OJzdc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=LwwCuhWn; arc=none smtp.client-ip=117.135.210.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="LwwCuhWn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=JU 4F2Q3eHK9pvmSD7puYaqzGpZsj+mRfAjJq366raHs=; b=LwwCuhWn3JaI4s4pad 4MRMvZujDojNeeWUmpdXt1qPI2qBkHAbBFpHfHxzNc0mIlnOnGIQVzAqZIblEaRK 9fRxlOWFuDcXc6HATQ8j4oFUVPfajfO2n/DxAtBFrkudgy2ckSZ9DKSxobQOliV3 1qPQVPy9yxvaSqVBvV7ff9/CQ= Received: from neo-TianYi510Pro-15ICK.. (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wCnYRfT97xpLMlnAQ--.10124S4; Fri, 20 Mar 2026 15:31:54 +0800 (CST) From: liuqiangneo@163.com To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Qiang Liu Subject: [PATCH 2/2] drm/dp_mst: Replace seq_printf with seq_puts for constant strings Date: Fri, 20 Mar 2026 15:31:28 +0800 Message-ID: <20260320073129.145575-3-liuqiangneo@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260320073129.145575-1-liuqiangneo@163.com> References: <20260320073129.145575-1-liuqiangneo@163.com> 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 X-CM-TRANSID: _____wCnYRfT97xpLMlnAQ--.10124S4 X-Coremail-Antispam: 1Uf129KBjvJXoWxCr4kuF17XF43AFyUJF1kKrg_yoW5Xr4fpr ZxCFyUGw1qvFs8tr47Jw42grZ8Ga9xAFyxW393Jw43Jwn8Ar4DCasFqayxtF4UGF9rtw15 tF4q9a45GFyDWaDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jfAwxUUUUU= X-CM-SenderInfo: 5olx1xxdqj0vrr6rljoofrz/xtbC3wrBI2m89+oQwQAA3u Content-Type: text/plain; charset="utf-8" From: Qiang Liu Replace seq_printf() with seq_puts() when printing constant strings without format specifiers. This is more efficient as seq_puts() doesn't need to parse the format string. Signed-off-by: Qiang Liu --- drivers/gpu/drm/display/drm_dp_mst_topology.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/dr= m/display/drm_dp_mst_topology.c index d8a732f21d3c..69fe2018eae5 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -4930,12 +4930,12 @@ void drm_dp_mst_dump_topology(struct seq_file *m, return; =20 state =3D to_drm_dp_mst_topology_state(mgr->base.state); - seq_printf(m, "\n*** Atomic state info ***\n"); + seq_puts(m, "\n*** Atomic state info ***\n"); seq_printf(m, "payload_mask: %x, max_payloads: %d, start_slot: %u, pbn_di= v: %d\n", state->payload_mask, mgr->max_payloads, state->start_slot, dfixed_trunc(state->pbn_div)); =20 - seq_printf(m, "\n| idx | port | vcpi | slots | pbn | dsc | status | s= ink name |\n"); + seq_puts(m, "\n| idx | port | vcpi | slots | pbn | dsc | status | sin= k name |\n"); for (i =3D 0; i < mgr->max_payloads; i++) { list_for_each_entry(payload, &state->payloads, next) { char name[14]; @@ -4957,28 +4957,28 @@ void drm_dp_mst_dump_topology(struct seq_file *m, } } =20 - seq_printf(m, "\n*** DPCD Info ***\n"); + seq_puts(m, "\n*** DPCD Info ***\n"); mutex_lock(&mgr->lock); if (mgr->mst_primary) { u8 buf[DP_PAYLOAD_TABLE_SIZE]; int ret; =20 if (drm_dp_read_dpcd_caps(mgr->aux, buf) < 0) { - seq_printf(m, "dpcd read failed\n"); + seq_puts(m, "dpcd read failed\n"); goto out; } seq_printf(m, "dpcd: %*ph\n", DP_RECEIVER_CAP_SIZE, buf); =20 ret =3D drm_dp_dpcd_read_data(mgr->aux, DP_FAUX_CAP, buf, 2); if (ret < 0) { - seq_printf(m, "faux/mst read failed\n"); + seq_puts(m, "faux/mst read failed\n"); goto out; } seq_printf(m, "faux/mst: %*ph\n", 2, buf); =20 ret =3D drm_dp_dpcd_read_data(mgr->aux, DP_MSTM_CTRL, buf, 1); if (ret < 0) { - seq_printf(m, "mst ctrl read failed\n"); + seq_puts(m, "mst ctrl read failed\n"); goto out; } seq_printf(m, "mst ctrl: %*ph\n", 1, buf); @@ -4987,7 +4987,7 @@ void drm_dp_mst_dump_topology(struct seq_file *m, ret =3D drm_dp_dpcd_read_data(mgr->aux, DP_BRANCH_OUI, buf, DP_BRANCH_OUI_HEADER_SIZE); if (ret < 0) { - seq_printf(m, "branch oui read failed\n"); + seq_puts(m, "branch oui read failed\n"); goto out; } seq_printf(m, "branch oui: %*phN devid: ", 3, buf); --=20 2.43.0