From patchwork Wed Aug 9 03:44:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 712290 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4EEFEB64DD for ; Wed, 9 Aug 2023 03:45:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230049AbjHIDpb (ORCPT ); Tue, 8 Aug 2023 23:45:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230007AbjHIDpa (ORCPT ); Tue, 8 Aug 2023 23:45:30 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB7CD173A; Tue, 8 Aug 2023 20:45:29 -0700 (PDT) Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4RLGBl4YvDz1GDtg; Wed, 9 Aug 2023 11:44:15 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 9 Aug 2023 11:45:24 +0800 From: Ruan Jinjie To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH -next 2/7] drm/amd/display: Remove unnecessary NULL values Date: Wed, 9 Aug 2023 11:44:40 +0800 Message-ID: <20230809034445.434902-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230809034445.434902-1-ruanjinjie@huawei.com> References: <20230809034445.434902-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The NULL initialization of the pointers assigned by kzalloc() first is not necessary, because if the kzalloc() failed, the pointers will be assigned NULL, otherwise it works as usual. so remove it. Signed-off-by: Ruan Jinjie --- drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 4 ++-- drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c index 4f005ae1516c..6b3190447581 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c @@ -96,7 +96,7 @@ struct dc_bios *bios_parser_create( struct bp_init_data *init, enum dce_version dce_version) { - struct bios_parser *bp = NULL; + struct bios_parser *bp; bp = kzalloc(sizeof(struct bios_parser), GFP_KERNEL); if (!bp) @@ -2576,7 +2576,7 @@ static struct integrated_info *bios_parser_create_integrated_info( struct dc_bios *dcb) { struct bios_parser *bp = BP_FROM_DCB(dcb); - struct integrated_info *info = NULL; + struct integrated_info *info; info = kzalloc(sizeof(struct integrated_info), GFP_KERNEL); diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index 540d19efad8f..c7b3359f1e1d 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -3086,7 +3086,7 @@ static struct integrated_info *bios_parser_create_integrated_info( struct dc_bios *dcb) { struct bios_parser *bp = BP_FROM_DCB(dcb); - struct integrated_info *info = NULL; + struct integrated_info *info; info = kzalloc(sizeof(struct integrated_info), GFP_KERNEL); @@ -3675,7 +3675,7 @@ struct dc_bios *firmware_parser_create( struct bp_init_data *init, enum dce_version dce_version) { - struct bios_parser *bp = NULL; + struct bios_parser *bp; bp = kzalloc(sizeof(struct bios_parser), GFP_KERNEL); if (!bp) From patchwork Wed Aug 9 03:44:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 712289 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A3B2C04A6A for ; Wed, 9 Aug 2023 03:45:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229623AbjHIDpg (ORCPT ); Tue, 8 Aug 2023 23:45:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229728AbjHIDpf (ORCPT ); Tue, 8 Aug 2023 23:45:35 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 375B0173A; Tue, 8 Aug 2023 20:45:34 -0700 (PDT) Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RLG8B1Qrsz9tDG; Wed, 9 Aug 2023 11:42:02 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 9 Aug 2023 11:45:29 +0800 From: Ruan Jinjie To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH -next 4/7] drm/radeon: Remove unnecessary NULL values Date: Wed, 9 Aug 2023 11:44:42 +0800 Message-ID: <20230809034445.434902-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230809034445.434902-1-ruanjinjie@huawei.com> References: <20230809034445.434902-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The NULL initialization of the pointers assigned by kzalloc() first is not necessary, because if the kzalloc() failed, the pointers will be assigned NULL, otherwise it works as usual. so remove it. Signed-off-by: Ruan Jinjie --- drivers/gpu/drm/radeon/radeon_agp.c | 2 +- drivers/gpu/drm/radeon/radeon_combios.c | 6 +++--- drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c index d124600b5f58..a3d749e350f9 100644 --- a/drivers/gpu/drm/radeon/radeon_agp.c +++ b/drivers/gpu/drm/radeon/radeon_agp.c @@ -130,7 +130,7 @@ static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = { struct radeon_agp_head *radeon_agp_head_init(struct drm_device *dev) { struct pci_dev *pdev = to_pci_dev(dev->dev); - struct radeon_agp_head *head = NULL; + struct radeon_agp_head *head; head = kzalloc(sizeof(*head), GFP_KERNEL); if (!head) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 795c3667f6d6..2620efc7c675 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -863,7 +863,7 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct struct radeon_device *rdev = dev->dev_private; uint16_t dac_info; uint8_t rev, bg, dac; - struct radeon_encoder_primary_dac *p_dac = NULL; + struct radeon_encoder_primary_dac *p_dac; int found = 0; p_dac = kzalloc(sizeof(struct radeon_encoder_primary_dac), @@ -1014,7 +1014,7 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct struct radeon_device *rdev = dev->dev_private; uint16_t dac_info; uint8_t rev, bg, dac; - struct radeon_encoder_tv_dac *tv_dac = NULL; + struct radeon_encoder_tv_dac *tv_dac; int found = 0; tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL); @@ -1100,7 +1100,7 @@ static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct radeon_device *rdev) { - struct radeon_encoder_lvds *lvds = NULL; + struct radeon_encoder_lvds *lvds; uint32_t fp_vert_stretch, fp_horz_stretch; uint32_t ppll_div_sel, ppll_val; uint32_t lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL); diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 601d35d34eab..c4350ac2b3d2 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1692,7 +1692,7 @@ static struct radeon_encoder_int_tmds *radeon_legacy_get_tmds_info(struct radeon { struct drm_device *dev = encoder->base.dev; struct radeon_device *rdev = dev->dev_private; - struct radeon_encoder_int_tmds *tmds = NULL; + struct radeon_encoder_int_tmds *tmds; bool ret; tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL); @@ -1715,7 +1715,7 @@ static struct radeon_encoder_ext_tmds *radeon_legacy_get_ext_tmds_info(struct ra { struct drm_device *dev = encoder->base.dev; struct radeon_device *rdev = dev->dev_private; - struct radeon_encoder_ext_tmds *tmds = NULL; + struct radeon_encoder_ext_tmds *tmds; bool ret; if (rdev->is_atom_bios) From patchwork Wed Aug 9 03:44:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 712288 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93B0BC04A6A for ; Wed, 9 Aug 2023 03:45:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229984AbjHIDpl (ORCPT ); Tue, 8 Aug 2023 23:45:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230138AbjHIDpk (ORCPT ); Tue, 8 Aug 2023 23:45:40 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64DC81736; Tue, 8 Aug 2023 20:45:39 -0700 (PDT) Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RLGBv5JPJzmXGH; Wed, 9 Aug 2023 11:44:23 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 9 Aug 2023 11:45:33 +0800 From: Ruan Jinjie To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH -next 6/7] drm/format-helper: Remove unnecessary NULL values Date: Wed, 9 Aug 2023 11:44:44 +0800 Message-ID: <20230809034445.434902-7-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230809034445.434902-1-ruanjinjie@huawei.com> References: <20230809034445.434902-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The NULL initialization of the pointers assigned by kunit_kzalloc() first is not necessary, because if kunit_kzalloc() failed, the pointers will be assigned NULL, otherwise it works as usual. so remove it. Signed-off-by: Ruan Jinjie --- .../gpu/drm/tests/drm_format_helper_test.c | 28 +++++++++---------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c index 474bb7a1c4ee..1db12d8ed23c 100644 --- a/drivers/gpu/drm/tests/drm_format_helper_test.c +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c @@ -452,7 +452,7 @@ static size_t conversion_buf_size(u32 dst_format, unsigned int dst_pitch, static u16 *le16buf_to_cpu(struct kunit *test, const __le16 *buf, size_t buf_size) { - u16 *dst = NULL; + u16 *dst; int n; dst = kunit_kzalloc(test, sizeof(*dst) * buf_size, GFP_KERNEL); @@ -467,7 +467,7 @@ static u16 *le16buf_to_cpu(struct kunit *test, const __le16 *buf, size_t buf_siz static u32 *le32buf_to_cpu(struct kunit *test, const __le32 *buf, size_t buf_size) { - u32 *dst = NULL; + u32 *dst; int n; dst = kunit_kzalloc(test, sizeof(*dst) * buf_size, GFP_KERNEL); @@ -482,7 +482,7 @@ static u32 *le32buf_to_cpu(struct kunit *test, const __le32 *buf, size_t buf_siz static __le32 *cpubuf_to_le32(struct kunit *test, const u32 *buf, size_t buf_size) { - __le32 *dst = NULL; + __le32 *dst; int n; dst = kunit_kzalloc(test, sizeof(*dst) * buf_size, GFP_KERNEL); @@ -509,7 +509,7 @@ static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_gray8_result *result = ¶ms->gray8_result; size_t dst_size; - u8 *buf = NULL; + u8 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -539,7 +539,7 @@ static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_rgb332_result *result = ¶ms->rgb332_result; size_t dst_size; - u8 *buf = NULL; + u8 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -569,7 +569,7 @@ static void drm_test_fb_xrgb8888_to_rgb565(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_rgb565_result *result = ¶ms->rgb565_result; size_t dst_size; - u16 *buf = NULL; + u16 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -605,7 +605,7 @@ static void drm_test_fb_xrgb8888_to_xrgb1555(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_xrgb1555_result *result = ¶ms->xrgb1555_result; size_t dst_size; - u16 *buf = NULL; + u16 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -636,7 +636,7 @@ static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_argb1555_result *result = ¶ms->argb1555_result; size_t dst_size; - u16 *buf = NULL; + u16 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -667,7 +667,7 @@ static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_rgba5551_result *result = ¶ms->rgba5551_result; size_t dst_size; - u16 *buf = NULL; + u16 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -698,7 +698,7 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_rgb888_result *result = ¶ms->rgb888_result; size_t dst_size; - u8 *buf = NULL; + u8 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -732,7 +732,7 @@ static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_argb8888_result *result = ¶ms->argb8888_result; size_t dst_size; - u32 *buf = NULL; + u32 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -763,7 +763,7 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_xrgb2101010_result *result = ¶ms->xrgb2101010_result; size_t dst_size; - u32 *buf = NULL; + u32 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -794,7 +794,7 @@ static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_argb2101010_result *result = ¶ms->argb2101010_result; size_t dst_size; - u32 *buf = NULL; + u32 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src; @@ -825,7 +825,7 @@ static void drm_test_fb_xrgb8888_to_mono(struct kunit *test) const struct convert_xrgb8888_case *params = test->param_value; const struct convert_to_mono_result *result = ¶ms->mono_result; size_t dst_size; - u8 *buf = NULL; + u8 *buf; __le32 *xrgb8888 = NULL; struct iosys_map dst, src;