From patchwork Sun Nov 3 17:03:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 840743 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (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 811DF18BB93; Sun, 3 Nov 2024 17:04:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730653485; cv=none; b=a1gXic6p21w7H1Ot2SJkuwl/IYbtzB/RA0/8CEad8UFeliP0JYPSeWmUOvb39r2wAiw6f73S1qn1uF2h68Z/KoJarrqkjLnYSZ6mpoPECqCdosF5swLRPkYGYjsaHS35kHbvSZS1mA0vjkcd4iDnlJlaN+2ZGKLqx5R+gfxMDWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730653485; c=relaxed/simple; bh=omnzY7OVUHnekZ/bUX8pXaM2rzeR5oe1Izmsxqjd69Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XZ09XCeffZa9c9eUgzzT+FtOM4UFtEwci/UKo0rbFjKk2KdLFW0UwIi7TXtaJWzl8+W9mXacT7+h2M4AK2Bsdx0MpwTsSJ+ZcSuCH5zUoOKdAe24pWgiJwhh7UaXaUngkla7e4BWiBSmsmE0G9HBSZSMK6JiGtpdWOeX38N38w4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=ELP3bYub; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="ELP3bYub" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1730653478; bh=omnzY7OVUHnekZ/bUX8pXaM2rzeR5oe1Izmsxqjd69Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ELP3bYubSPoehjiKV9LwVGa0LECLFMv30PiKWRP+XEfsqygiG8XRoBrNn7C2nyC/C VupEgMPEw5QRr5cyBiVj2Zl8aR/LlWWMGQU+UvLgZt4h9SCxl/glKuJjStidVMK+Uv 9gUi0GlcCALNBuvpPYJ2W06Z7+6FuuUB4jD+cpXY= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Sun, 03 Nov 2024 17:03:32 +0000 Subject: [PATCH v2 03/10] PCI/sysfs: Calculate bin_attribute size through bin_size() Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241103-sysfs-const-bin_attr-v2-3-71110628844c@weissschuh.net> References: <20241103-sysfs-const-bin_attr-v2-0-71110628844c@weissschuh.net> In-Reply-To: <20241103-sysfs-const-bin_attr-v2-0-71110628844c@weissschuh.net> To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Bjorn Helgaas , Srinivas Kandagatla , Davidlohr Bueso , Jonathan Cameron , Dave Jiang , Alison Schofield , Vishal Verma , Ira Weiny , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , Xinhui Pan , David Airlie , Simona Vetter , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Naveen Krishna Chatradhi , Carlos Bilbao , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , "David E. Box" , "James E.J. Bottomley" , "Martin K. Petersen" , Richard Henderson , Matt Turner , Frederic Barrat , Andrew Donnellan , Arnd Bergmann , Logan Gunthorpe , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui Cc: Dan Williams , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-cxl@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-mtd@lists.infradead.org, platform-driver-x86@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, linux-alpha@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-hyperv@vger.kernel.org, =?utf-8?q?Tho?= =?utf-8?q?mas_Wei=C3=9Fschuh?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1730653468; l=2359; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=omnzY7OVUHnekZ/bUX8pXaM2rzeR5oe1Izmsxqjd69Q=; b=QEHmCC4IyJCPeU5OBXq34EhCHkpPKQglOlOaOSow6b0xRNSB6n8UoneN+GL6/CGyBOY6ZhYUm LOb4xWNOB8AC0VTvIPxtVY0ZKdQGGSIFQEaRXg1966rzLgUpCbB+31p X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Stop abusing the is_bin_visible() callback to calculate the attribute size. Instead use the new, dedicated bin_size() one. Signed-off-by: Thomas Weißschuh --- drivers/pci/pci-sysfs.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 5d0f4db1cab78674c5e5906f321bf7a57b742983..040f01b2b999175e8d98b05851edc078bbabbe0d 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -818,21 +818,20 @@ static struct bin_attribute *pci_dev_config_attrs[] = { NULL, }; -static umode_t pci_dev_config_attr_is_visible(struct kobject *kobj, - struct bin_attribute *a, int n) +static size_t pci_dev_config_attr_bin_size(struct kobject *kobj, + const struct bin_attribute *a, + int n) { struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj)); - a->size = PCI_CFG_SPACE_SIZE; if (pdev->cfg_size > PCI_CFG_SPACE_SIZE) - a->size = PCI_CFG_SPACE_EXP_SIZE; - - return a->attr.mode; + return PCI_CFG_SPACE_EXP_SIZE; + return PCI_CFG_SPACE_SIZE; } static const struct attribute_group pci_dev_config_attr_group = { .bin_attrs = pci_dev_config_attrs, - .is_bin_visible = pci_dev_config_attr_is_visible, + .bin_size = pci_dev_config_attr_bin_size, }; /* @@ -1330,21 +1329,26 @@ static umode_t pci_dev_rom_attr_is_visible(struct kobject *kobj, struct bin_attribute *a, int n) { struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj)); - size_t rom_size; /* If the device has a ROM, try to expose it in sysfs. */ - rom_size = pci_resource_len(pdev, PCI_ROM_RESOURCE); - if (!rom_size) + if (!pci_resource_end(pdev, PCI_ROM_RESOURCE)) return 0; - a->size = rom_size; - return a->attr.mode; } +static size_t pci_dev_rom_attr_bin_size(struct kobject *kobj, + const struct bin_attribute *a, int n) +{ + struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj)); + + return pci_resource_len(pdev, PCI_ROM_RESOURCE); +} + static const struct attribute_group pci_dev_rom_attr_group = { .bin_attrs = pci_dev_rom_attrs, .is_bin_visible = pci_dev_rom_attr_is_visible, + .bin_size = pci_dev_rom_attr_bin_size, }; static ssize_t reset_store(struct device *dev, struct device_attribute *attr,