From patchwork Fri Nov 15 16:37:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 843752 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 ED9521D5CC2; Fri, 15 Nov 2024 16:37:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731688675; cv=none; b=CDoiK1/TWqJIq7TWuxgZS1IN/3Vqp3VrKVJ9Dmhc1mj63ae24N1VaLb3H/dvq714p/VtecZMN9rD2j4C4PrJQeV0BybyJEXHABOuFOSFOPBQdl3MNyUgPUdNHBwQMTQQbVz51k1ylMerpSLMEyiDDiNfvCtDaIJ8B9ubkCtbQdA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731688675; c=relaxed/simple; bh=G+QXM0dP/aUGDDuORYwyj7yKPloC4FEoVkfEMuyp+Xo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=uR2smdF5z+qqE1uPV/ZiSTl6c4Y2cM5wK1Ksrvf0azsWwgJ9IcIz4RAxe7ruH7ubmbZ5eZFcgd9nGWAMfpL9C66A0Z23ZJEh8I131jn02HIN/DfQ/8YjP/pyfyCZxZ35NINEuqoRf3hgq4Pmuf1h3jA8LAokkvMfgyd03As85mM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=E+kekySO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="E+kekySO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0EC6EC4CED0; Fri, 15 Nov 2024 16:37:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731688674; bh=G+QXM0dP/aUGDDuORYwyj7yKPloC4FEoVkfEMuyp+Xo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=E+kekySOEOy+MjH3wlTA1i9haLjzgntIb4AgKxHTm/3SY8v8D1+t2paa+Hh7sYINs taHvbn7qjSybthKq2gGRcNF4GbOIaoNZjQUIU4UGmvmT10QoGHFOZlheEtXGFQFUDX wEusqWkCov8se2R+oXY2Azlfn4E4EClejwQFYvKAgYUJG5tT3ZTA/0CLITh89VsAXf cG1dj+/C42YkDPVVgRJuDQ1ps72LjbgYacjSQoUyyKVkMOMQRtvrbFtzgFajt++0uY OmZbGrE3fnZ+kuUUhR2zL6w6DL/tYzfXv9xwoZnhaBZXYtk7sFwe6eUcdBVkEntmpG U65dRGgxgHC1w== From: Daniel Wagner Date: Fri, 15 Nov 2024 17:37:45 +0100 Subject: [PATCH v5 1/8] driver core: bus: add irq_get_affinity callback to bus_type Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241115-refactor-blk-affinity-helpers-v5-1-c472afd84d9f@kernel.org> References: <20241115-refactor-blk-affinity-helpers-v5-0-c472afd84d9f@kernel.org> In-Reply-To: <20241115-refactor-blk-affinity-helpers-v5-0-c472afd84d9f@kernel.org> To: Jens Axboe , Bjorn Helgaas , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , "Martin K. Petersen" , Keith Busch , Christoph Hellwig , Sagi Grimberg , John Garry , Greg Kroah-Hartman , Hannes Reinecke , Ming Lei Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, virtualization@lists.linux.dev, linux-scsi@vger.kernel.org, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, MPT-FusionLinux.pdl@broadcom.com, storagedev@microchip.com, linux-nvme@lists.infradead.org, Daniel Wagner X-Mailer: b4 0.14.2 Introducing a callback in struct bus_type so that a subsystem can hook up the getters directly. This approach avoids exposing random getters in any subsystems APIs. Acked-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Signed-off-by: Daniel Wagner Acked-by: Greg Kroah-Hartman --- include/linux/device/bus.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index cdc4757217f9bb4b36b5c3b8a48bab45737e44c5..b18658bce2c3819fc1cbeb38fb98391d56ec3317 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -48,6 +48,7 @@ struct fwnode_handle; * will never get called until they do. * @remove: Called when a device removed from this bus. * @shutdown: Called at shut-down time to quiesce the device. + * @irq_get_affinity: Get IRQ affinity mask for the device on this bus. * * @online: Called to put the device back online (after offlining it). * @offline: Called to put the device offline for hot-removal. May fail. @@ -87,6 +88,8 @@ struct bus_type { void (*sync_state)(struct device *dev); void (*remove)(struct device *dev); void (*shutdown)(struct device *dev); + const struct cpumask *(*irq_get_affinity)(struct device *dev, + unsigned int irq_vec); int (*online)(struct device *dev); int (*offline)(struct device *dev);