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GET /api/1.1/patches/2231593/?format=api
{ "id": 2231593, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2231593/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/patch/20260430214202.58405-1-rosenp@gmail.com/", "project": { "id": 21, "url": "http://patchwork.ozlabs.org/api/1.1/projects/21/?format=api", "name": "Linux Tegra Development", "link_name": "linux-tegra", "list_id": "linux-tegra.vger.kernel.org", "list_email": "linux-tegra@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260430214202.58405-1-rosenp@gmail.com>", "date": "2026-04-30T21:42:02", "name": "ASoC: tegra: ADMAIF: allocate with a single kzalloc", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "9bb2a80841e40ac7ad47a05fa4551de3100ff3e8", "submitter": { "id": 70304, "url": "http://patchwork.ozlabs.org/api/1.1/people/70304/?format=api", "name": "Rosen Penev", "email": "rosenp@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-tegra/patch/20260430214202.58405-1-rosenp@gmail.com/mbox/", "series": [ { "id": 502395, "url": "http://patchwork.ozlabs.org/api/1.1/series/502395/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/list/?series=502395", "date": "2026-04-30T21:42:02", "name": "ASoC: tegra: ADMAIF: allocate with a single kzalloc", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502395/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231593/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231593/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-tegra+bounces-14117-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-tegra@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=hcLk+M3z;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; 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This reduces the number of allocations from\nthree to one, simplifies error handling, and improves memory locality.\n\nsound/soc/tegra/tegra210_admaif.c | 28 ++++++++++------------------\n sound/soc/tegra/tegra210_admaif.h | 2 +-\n sound/soc/tegra/tegra_isomgr_bw.c | 1 +\n 3 files changed, 12 insertions(+), 19 deletions(-)", "diff": "diff --git a/sound/soc/tegra/tegra210_admaif.c b/sound/soc/tegra/tegra210_admaif.c\nindex a1c2757a3932..7299c6bfcf15 100644\n--- a/sound/soc/tegra/tegra210_admaif.c\n+++ b/sound/soc/tegra/tegra210_admaif.c\n@@ -11,6 +11,7 @@\n #include <linux/platform_device.h>\n #include <linux/pm_runtime.h>\n #include <linux/regmap.h>\n+#include <sound/dmaengine_pcm.h>\n #include <sound/pcm_params.h>\n #include <sound/soc.h>\n #include \"tegra_isomgr_bw.h\"\n@@ -912,35 +913,26 @@ MODULE_DEVICE_TABLE(of, tegra_admaif_of_match);\n \n static int tegra_admaif_probe(struct platform_device *pdev)\n {\n+\tconst struct tegra_admaif_soc_data *soc_data;\n \tstruct tegra_admaif *admaif;\n \tvoid __iomem *regs;\n \tstruct resource *res;\n+\tsize_t alloc_size;\n \tint err, i;\n \n-\tadmaif = devm_kzalloc(&pdev->dev, sizeof(*admaif), GFP_KERNEL);\n+\tsoc_data = of_device_get_match_data(&pdev->dev);\n+\n+\talloc_size = struct_size(admaif, capture_dma_data, soc_data->num_ch);\n+\talloc_size += sizeof(*admaif->playback_dma_data) * soc_data->num_ch;\n+\tadmaif = devm_kzalloc(&pdev->dev, alloc_size, GFP_KERNEL);\n \tif (!admaif)\n \t\treturn -ENOMEM;\n \n-\tadmaif->soc_data = of_device_get_match_data(&pdev->dev);\n+\tadmaif->playback_dma_data = admaif->capture_dma_data + soc_data->num_ch;\n+\tadmaif->soc_data = soc_data;\n \n \tdev_set_drvdata(&pdev->dev, admaif);\n \n-\tadmaif->capture_dma_data =\n-\t\tdevm_kcalloc(&pdev->dev,\n-\t\t\t admaif->soc_data->num_ch,\n-\t\t\t sizeof(struct snd_dmaengine_dai_dma_data),\n-\t\t\t GFP_KERNEL);\n-\tif (!admaif->capture_dma_data)\n-\t\treturn -ENOMEM;\n-\n-\tadmaif->playback_dma_data =\n-\t\tdevm_kcalloc(&pdev->dev,\n-\t\t\t admaif->soc_data->num_ch,\n-\t\t\t sizeof(struct snd_dmaengine_dai_dma_data),\n-\t\t\t GFP_KERNEL);\n-\tif (!admaif->playback_dma_data)\n-\t\treturn -ENOMEM;\n-\n \tfor (i = 0; i < ADMAIF_PATHS; i++) {\n \t\tadmaif->mono_to_stereo[i] =\n \t\t\tdevm_kcalloc(&pdev->dev, admaif->soc_data->num_ch,\ndiff --git a/sound/soc/tegra/tegra210_admaif.h b/sound/soc/tegra/tegra210_admaif.h\nindex 304d45c76a9a..fd9877aa95d3 100644\n--- a/sound/soc/tegra/tegra210_admaif.h\n+++ b/sound/soc/tegra/tegra210_admaif.h\n@@ -229,13 +229,13 @@ struct tegra_admaif_soc_data {\n };\n \n struct tegra_admaif {\n-\tstruct snd_dmaengine_dai_dma_data *capture_dma_data;\n \tstruct snd_dmaengine_dai_dma_data *playback_dma_data;\n \tconst struct tegra_admaif_soc_data *soc_data;\n \tunsigned int *mono_to_stereo[ADMAIF_PATHS];\n \tunsigned int *stereo_to_mono[ADMAIF_PATHS];\n \tstruct regmap *regmap;\n \tstruct tegra_adma_isomgr *adma_isomgr;\n+\tstruct snd_dmaengine_dai_dma_data capture_dma_data[];\n };\n \n #endif\ndiff --git a/sound/soc/tegra/tegra_isomgr_bw.c b/sound/soc/tegra/tegra_isomgr_bw.c\nindex fa979960bc09..c0f300fb3d38 100644\n--- a/sound/soc/tegra/tegra_isomgr_bw.c\n+++ b/sound/soc/tegra/tegra_isomgr_bw.c\n@@ -6,6 +6,7 @@\n \n #include <linux/interconnect.h>\n #include <linux/module.h>\n+#include <sound/dmaengine_pcm.h>\n #include <sound/pcm_params.h>\n #include <sound/soc.h>\n #include \"tegra_isomgr_bw.h\"\n", "prefixes": [] }