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GET /api/patches/2224204/?format=api
{ "id": 2224204, "url": "http://patchwork.ozlabs.org/api/patches/2224204/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260417033439.318930-1-ynorov@nvidia.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260417033439.318930-1-ynorov@nvidia.com>", "list_archive_url": null, "date": "2026-04-17T03:34:38", "name": "gpio: drop bitmap_complement() where feasible", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "351c9b2ac706ed6849102874521478cd9ec0db1c", "submitter": { "id": 92516, "url": "http://patchwork.ozlabs.org/api/people/92516/?format=api", "name": "Yury Norov", "email": "ynorov@nvidia.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260417033439.318930-1-ynorov@nvidia.com/mbox/", "series": [ { "id": 500229, "url": "http://patchwork.ozlabs.org/api/series/500229/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=500229", "date": "2026-04-17T03:34:38", "name": "gpio: drop bitmap_complement() where feasible", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500229/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224204/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224204/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-gpio+bounces-35202-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass 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header.d=nvidia.com; arc=none" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com;\n s=selector2;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=dCER12a8AX4KI+qktc+coveVq7UcxKaCuFiBXc8NcHM=;\n b=CgTE3UV7pPNNsImIRks+qkS7eCOo/pq6DvkdkUEXQbGYnu9MaPi768Bs7SKp2BYWT6+UoUQGBv9QinOYTbo+wVWpn4L4dyZ7+TFs0tWx5MFX66zHhgSApIKfndS5NO4AwHRLWkgHe5XgoNZvQ/NE5xDf9xkgrdtS4Ff20tPlNVqMptiTKDBCG+d8q7oX/xeEBjG7ZKAWfvUm1chT4a+kmKnRB7t3+rS83/nsD96p07eoywHl5qoq5DveRVdc+ghnOkGMeAnfc4ARAwNn/ARKfdssl+bTX0f6mBlsOYlXgPK/GqLxPbUSQLKhxfVfMR9HI98tNcS8/XwLVF+1RLNN5g==", "From": "Yury Norov <ynorov@nvidia.com>", "To": "Linus Walleij <linusw@kernel.org>,\n\tAndy Shevchenko <andriy.shevchenko@linux.intel.com>,\n\tBartosz Golaszewski <brgl@kernel.org>,\n\tShubhrajyoti Datta <shubhrajyoti.datta@amd.com>,\n\tSrinivas Neeli <srinivas.neeli@amd.com>,\n\tMichal Simek <michal.simek@amd.com>,\n\tlinux-gpio@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org", "Cc": "Yury Norov <ynorov@nvidia.com>", "Subject": "[PATCH] gpio: drop bitmap_complement() where feasible", "Date": "Thu, 16 Apr 2026 23:34:38 -0400", "Message-ID": "<20260417033439.318930-1-ynorov@nvidia.com>", "X-Mailer": "git-send-email 2.51.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "BN0PR03CA0043.namprd03.prod.outlook.com\n (2603:10b6:408:e7::18) To CY8PR12MB8300.namprd12.prod.outlook.com\n (2603:10b6:930:7d::16)", "Precedence": "bulk", "X-Mailing-List": "linux-gpio@vger.kernel.org", "List-Id": "<linux-gpio.vger.kernel.org>", "List-Subscribe": "<mailto:linux-gpio+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-gpio+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "CY8PR12MB8300:EE_|SJ0PR12MB6926:EE_", 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"\n\tCIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CY8PR12MB8300.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(10070799003)(56012099003)(18002099003);DIR:OUT;SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n 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", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n c8bec062-12de-4552-2677-08de9c324381", "X-MS-Exchange-CrossTenant-AuthSource": "CY8PR12MB8300.namprd12.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "17 Apr 2026 03:34:42.9183\n (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n CDapGFg721j0sZX9IXd8ZQ/tNV/WfcBL9+5uREcx1z6SFGhy2WkXZygUElKzF41JGu0dxtgWA66ZZzyvXS9nWg==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "SJ0PR12MB6926" }, "content": "The gpio drivers reproduce the following pattern:\n\n\tbitmap_complement(tmp, data1, nbits);\n\tbitmap_and(dst, data2, tmp, nbits);\n\nThis can be done in a single pass:\n\n\tbitmap_andnot(dst, data2, data1t, nbits);\n\nSigned-off-by: Yury Norov <ynorov@nvidia.com>\n---\n drivers/gpio/gpio-pca953x.c | 7 ++-----\n drivers/gpio/gpio-xilinx.c | 6 ++----\n 2 files changed, 4 insertions(+), 9 deletions(-)", "diff": "diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c\nindex 52e96cc5f67b..1fef733fe1f0 100644\n--- a/drivers/gpio/gpio-pca953x.c\n+++ b/drivers/gpio/gpio-pca953x.c\n@@ -877,11 +877,9 @@ static void pca953x_irq_bus_sync_unlock(struct irq_data *d)\n \tbitmap_or(irq_mask, chip->irq_trig_fall, chip->irq_trig_raise, gc->ngpio);\n \tbitmap_or(irq_mask, irq_mask, chip->irq_trig_level_high, gc->ngpio);\n \tbitmap_or(irq_mask, irq_mask, chip->irq_trig_level_low, gc->ngpio);\n-\tbitmap_complement(reg_direction, reg_direction, gc->ngpio);\n-\tbitmap_and(irq_mask, irq_mask, reg_direction, gc->ngpio);\n \n \t/* Look for any newly setup interrupt */\n-\tfor_each_set_bit(level, irq_mask, gc->ngpio)\n+\tfor_each_andnot_bit(level, irq_mask, reg_direction, gc->ngpio)\n \t\tpca953x_gpio_direction_input(&chip->gpio_chip, level);\n \n \tmutex_unlock(&chip->irq_lock);\n@@ -1005,8 +1003,7 @@ static bool pca953x_irq_pending(struct pca953x_chip *chip, unsigned long *pendin\n \tbitmap_and(cur_stat, cur_stat, chip->irq_mask, gc->ngpio);\n \tbitmap_or(pending, pending, cur_stat, gc->ngpio);\n \n-\tbitmap_complement(cur_stat, new_stat, gc->ngpio);\n-\tbitmap_and(cur_stat, cur_stat, reg_direction, gc->ngpio);\n+\tbitmap_andnot(cur_stat, reg_direction, new_stat, gc->ngpio);\n \tbitmap_and(old_stat, cur_stat, chip->irq_trig_level_low, gc->ngpio);\n \tbitmap_and(old_stat, old_stat, chip->irq_mask, gc->ngpio);\n \tbitmap_or(pending, pending, old_stat, gc->ngpio);\ndiff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c\nindex be4b4d730547..532205175827 100644\n--- a/drivers/gpio/gpio-xilinx.c\n+++ b/drivers/gpio/gpio-xilinx.c\n@@ -495,13 +495,11 @@ static void xgpio_irqhandler(struct irq_desc *desc)\n \n \txgpio_read_ch_all(chip, XGPIO_DATA_OFFSET, hw);\n \n-\tbitmap_complement(rising, chip->last_irq_read, 64);\n-\tbitmap_and(rising, rising, hw, 64);\n+\tbitmap_andnot(rising, hw, chip->last_irq_read, 64);\n \tbitmap_and(rising, rising, chip->enable, 64);\n \tbitmap_and(rising, rising, chip->rising_edge, 64);\n \n-\tbitmap_complement(falling, hw, 64);\n-\tbitmap_and(falling, falling, chip->last_irq_read, 64);\n+\tbitmap_andnot(falling, chip->last_irq_read, hw, 64);\n \tbitmap_and(falling, falling, chip->enable, 64);\n \tbitmap_and(falling, falling, chip->falling_edge, 64);\n \n", "prefixes": [] }