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GET /api/1.2/patches/2224683/?format=api
{ "id": 2224683, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2224683/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260417175955.375275-2-ynorov@nvidia.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20260417175955.375275-2-ynorov@nvidia.com>", "list_archive_url": null, "date": "2026-04-17T17:59:53", "name": "[v2,1/2] gpio: pca953x: drop bitmap_complement() where feasible", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3b499d889d148c184611b17830cff50652b355ed", "submitter": { "id": 92516, "url": "http://patchwork.ozlabs.org/api/1.2/people/92516/?format=api", "name": "Yury Norov", "email": "ynorov@nvidia.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260417175955.375275-2-ynorov@nvidia.com/mbox/", "series": [ { "id": 500384, "url": "http://patchwork.ozlabs.org/api/1.2/series/500384/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=500384", "date": "2026-04-17T17:59:53", "name": "gpio: drop bitmap_complement() where feasible", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500384/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224683/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224683/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-gpio+bounces-35214-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": [ 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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=0yO75ubrudtPr9DnNOTwe9S/UAQ8T4cAy84+gi+KCi0=;\n b=d40N19+NOGH/68x7dFfsdu8MIUkSfD2Jd6EXnI510Jw1c7dufHIVpHKEj6x7EwUw1Iwlcfz3mo4kWboyb7SuR88g/34Lckv8hGvHtjKa5pbWVSdB7bL1Z06HBLAH9se6IOf8CVwkOG1UH05pyinkX/6gmeW8rkWewFoi3VwcLa3FdcVfH5hMECUKkP/ET/YImhsVeycGf60UQmLi08dXn2MJDdZfbupY2yrLQaFj9t2ZYupyaCNaSdUI+uDpwCVMK0WAC6AbSERNpYX4y//5srtLhocCOIrsAVORVbefXoT9CRU2KXK5xu3kVtFaqOkbFQzOjNCO8XQW2qjTM6Kw5w==", "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\tYury Norov <yury.norov@gmail.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 v2 1/2] gpio: pca953x: drop bitmap_complement() where feasible", "Date": "Fri, 17 Apr 2026 13:59:53 -0400", "Message-ID": "<20260417175955.375275-2-ynorov@nvidia.com>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260417175955.375275-1-ynorov@nvidia.com>", "References": "<20260417175955.375275-1-ynorov@nvidia.com>", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "BN0PR03CA0041.namprd03.prod.outlook.com\n (2603:10b6:408:e7::16) 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>", 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", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n c0bb62b3-0a72-4cc4-09ea-08de9cab24ef", "X-MS-Exchange-CrossTenant-AuthSource": "CY8PR12MB8300.namprd12.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "17 Apr 2026 18:00:00.7313\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 DhewajTZmqkH1qOKvgBH9258lJ9LUXyDmQcpUxjqiHHWtRZu5gO/loM79r0Nydv56xyqWvPmLCPIdjhi5E7Xpg==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "IA0PPF0A63E7557" }, "content": "The driver reproduces 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, data1, nbits);\n\nReviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>\nSigned-off-by: Yury Norov <ynorov@nvidia.com>\n---\n drivers/gpio/gpio-pca953x.c | 7 ++-----\n 1 file changed, 2 insertions(+), 5 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);\n", "prefixes": [ "v2", "1/2" ] }