From patchwork Wed Jun 5 15:13:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 165890 Delivered-To: patch@linaro.org Received: by 2002:a92:9e1a:0:0:0:0:0 with SMTP id q26csp7485104ili; Wed, 5 Jun 2019 08:14:28 -0700 (PDT) X-Google-Smtp-Source: APXvYqzuQVPRFevejO9eCUjTqioqPi3mX20ZOCobTeMh6m1ZNaMaMdV28Ie3MQqTtp1I+mwpCr/k X-Received: by 2002:a17:90a:9a95:: with SMTP id e21mr16659144pjp.98.1559747668171; Wed, 05 Jun 2019 08:14:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559747668; cv=none; d=google.com; s=arc-20160816; b=Lb5UMXeGjPEGvD/q14Vgm/bGl56reUwAt7+7b4ayBwIYS/PIyTvwsBB5CfFUt/1aBJ 5245Fh4FehTRopG6Id3dLFhOyg69aiAWNbH+sVI4QL0cM4YHGcaaHtcwHpzOJKrlUIiY cHrOvhTavpCY7huoqByOM7Rr8ZqWFJBgVZMNldzUzAqk6k+l4TZf1Xihm89onnHehpNG Wri/zuc1W9XWYe+Evr720oiQVAIfxRaskolJu2fX3PUEgWnOTbCD62aLTYhbgyoafdCs VklNBUJh+6C3s6ZdvkZJ9Hh2oxAP+PgJFoRkRb2z/4OfytbyHz9I93yREk07gRhAo45H V/Tg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from; bh=iFIsHly0OIGCinVw4IlW6KXha+eQTOtTjceHTn6Je+M=; b=BwT/k+zzCIXxLl4gO2pqkRscX4XLGMMUb1YLNa/W5NmC7NyZA57TjiQTfLDCYPXC+X TCc5e2Ad0UgnA7DahEsOomROpEwHSOvcWqhFTAUMHQgFjWTjJe1ceFLX45Cvv+rKVh7l w+z96zh6W3JD/o0Ks+Glb5n2gk+Wm8RZgKvFs1sTxaQpUuv+1HOgJbjHCoog1BqmmjZ6 T5GDod53wQi2rzLEY9CE8sQqcqrSxzbXgesNa2NR5ey52VfoyEJZGGDH58KycY7UmS4a FefljFVFsBcN3teuloOAa+4Fn0ZD/PIgnpDKbrN1BRvacAVdfKT40CISoFHjpdoCyG+K 0SWg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 5si11948261pgt.261.2019.06.05.08.14.27; Wed, 05 Jun 2019 08:14:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728432AbfFEPO1 (ORCPT + 30 others); Wed, 5 Jun 2019 11:14:27 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33316 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728089AbfFEPO0 (ORCPT ); Wed, 5 Jun 2019 11:14:26 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B1F2015BF; Wed, 5 Jun 2019 08:14:25 -0700 (PDT) Received: from en101.cambridge.arm.com (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 483643F246; Wed, 5 Jun 2019 08:14:20 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com, Alexander Shishkin , Andrew Lunn , Andreas Noever , Arnd Bergmann , Bjorn Helgaas , Corey Minyard , Christian Borntraeger , David Kershner , "David S. Miller" , David Airlie , Felipe Balbi , Frank Rowand , Grygorii Strashko , Harald Freudenberger , Hartmut Knaack , Heiko Stuebner , Jason Gunthorpe , Jonathan Cameron , "James E.J. Bottomley" , Len Brown , Mark Brown , Michael Ellerman , Michael Jamet , "Martin K. Petersen" , Peter Oberparleiter , Rob Herring , Sebastian Ott , Srinivas Kandagatla , Yehezkel Bernat , Wolfram Sang Subject: [PATCH 02/13] bus_find_device: Unify the match callback with class_find_device Date: Wed, 5 Jun 2019 16:13:39 +0100 Message-Id: <1559747630-28065-3-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1559747630-28065-1-git-send-email-suzuki.poulose@arm.com> References: <1559747630-28065-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is an arbitrary difference between the prototypes of bus_find_device() and class_find_device() preventing their callers from passing the same pair of data and match() arguments to both of them, which is the const qualifier used in the prototype of class_find_device(). If that qualifier is also used in the bus_find_device() prototype, it will be possible to pass the same match() callback function to both bus_find_device() and class_find_device(), which will allow some optimizations to be made in order to avoid code duplication going forward. Also with that, constify the "data" parameter as it is passed as a const to the match function. For this reason, change the prototype of bus_find_device() to match the prototype of class_find_device() and adjust its callers to use the const qualifier in accordance with the new prototype of it. Cc: Alexander Shishkin Cc: Andrew Lunn Cc: Andreas Noever Cc: Arnd Bergmann Cc: Bjorn Helgaas Cc: Corey Minyard Cc: Christian Borntraeger Cc: David Kershner Cc: "David S. Miller" Cc: David Airlie Cc: Felipe Balbi Cc: Frank Rowand Cc: Grygorii Strashko Cc: Harald Freudenberger Cc: Hartmut Knaack Cc: Heiko Stuebner Cc: Jason Gunthorpe Cc: Jonathan Cameron Cc: Jonathan Cameron Cc: "James E.J. Bottomley" Cc: Len Brown Cc: Mark Brown Cc: Michael Ellerman Cc: Michael Jamet Cc: "Martin K. Petersen" Cc: Peter Oberparleiter Cc: Rob Herring Cc: Sebastian Ott Cc: Srinivas Kandagatla Cc: Yehezkel Bernat Cc: Wolfram Sang Cc: rafael@kernel.org Cc: Greg Kroah-Hartman Signed-off-by: Suzuki K Poulose --- arch/powerpc/platforms/pseries/ibmebus.c | 4 ++-- drivers/acpi/acpi_lpss.c | 4 ++-- drivers/acpi/sleep.c | 2 +- drivers/acpi/utils.c | 4 ++-- drivers/base/bus.c | 6 +++--- drivers/base/devcon.c | 2 +- drivers/char/ipmi/ipmi_si_platform.c | 2 +- drivers/firmware/efi/dev-path-parser.c | 4 ++-- drivers/gpu/drm/drm_mipi_dsi.c | 2 +- drivers/hwtracing/coresight/coresight.c | 6 +++--- drivers/hwtracing/coresight/of_coresight.c | 2 +- drivers/hwtracing/intel_th/core.c | 5 ++--- drivers/i2c/i2c-core-acpi.c | 4 ++-- drivers/i2c/i2c-core-of.c | 4 ++-- drivers/iio/inkern.c | 2 +- drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 2 +- drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 2 +- drivers/net/ethernet/ti/cpsw-phy-sel.c | 4 ++-- drivers/net/ethernet/ti/davinci_emac.c | 2 +- drivers/net/ethernet/toshiba/tc35815.c | 4 ++-- drivers/nvmem/core.c | 2 +- drivers/of/of_mdio.c | 2 +- drivers/of/platform.c | 2 +- drivers/pci/probe.c | 2 +- drivers/pci/search.c | 4 ++-- drivers/s390/cio/css.c | 4 ++-- drivers/s390/cio/device.c | 4 ++-- drivers/s390/cio/scm.c | 4 ++-- drivers/s390/crypto/ap_bus.c | 8 ++++---- drivers/scsi/scsi_proc.c | 2 +- drivers/spi/spi.c | 4 ++-- drivers/staging/most/core.c | 4 ++-- drivers/thunderbolt/switch.c | 4 ++-- drivers/usb/core/devio.c | 4 ++-- drivers/usb/core/usb.c | 4 ++-- drivers/usb/phy/phy-am335x-control.c | 4 ++-- drivers/usb/phy/phy-isp1301.c | 4 ++-- drivers/visorbus/visorbus_main.c | 4 ++-- include/linux/device.h | 4 ++-- sound/soc/rockchip/rk3399_gru_sound.c | 2 +- 40 files changed, 69 insertions(+), 70 deletions(-) -- 2.7.4 Acked-by: Corey Minyard Acked-by: David Kershner Acked-by: Mark Brown Acked-by: Rafael J. Wysocki Acked-by: Srinivas Kandagatla diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index 84e8ec4..b91eb09 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -147,13 +147,13 @@ static const struct dma_map_ops ibmebus_dma_ops = { .unmap_page = ibmebus_unmap_page, }; -static int ibmebus_match_path(struct device *dev, void *data) +static int ibmebus_match_path(struct device *dev, const void *data) { struct device_node *dn = to_platform_device(dev)->dev.of_node; return (of_find_node_by_path(data) == dn); } -static int ibmebus_match_node(struct device *dev, void *data) +static int ibmebus_match_node(struct device *dev, const void *data) { return to_platform_device(dev)->dev.of_node == data; } diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index cf76860..dc2ca78 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -511,10 +511,10 @@ struct hid_uid { const char *uid; }; -static int match_hid_uid(struct device *dev, void *data) +static int match_hid_uid(struct device *dev, const void *data) { struct acpi_device *adev = ACPI_COMPANION(dev); - struct hid_uid *id = data; + const struct hid_uid *id = data; if (!adev) return 0; diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index a34decc..fcf4386 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -454,7 +454,7 @@ static int acpi_pm_prepare(void) return error; } -static int find_powerf_dev(struct device *dev, void *data) +static int find_powerf_dev(struct device *dev, const void *data) { struct acpi_device *device = to_acpi_device(dev); const char *hid = acpi_device_hid(device); diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 1391b63..e3974a8 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -730,10 +730,10 @@ struct acpi_dev_match_info { s64 hrv; }; -static int acpi_dev_match_cb(struct device *dev, void *data) +static int acpi_dev_match_cb(struct device *dev, const void *data) { struct acpi_device *adev = to_acpi_device(dev); - struct acpi_dev_match_info *match = data; + const struct acpi_dev_match_info *match = data; unsigned long long hrv; acpi_status status; diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 0a58e96..df3cac7 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -323,8 +323,8 @@ EXPORT_SYMBOL_GPL(bus_for_each_dev); * return to the caller and not iterate over any more devices. */ struct device *bus_find_device(struct bus_type *bus, - struct device *start, void *data, - int (*match)(struct device *dev, void *data)) + struct device *start, const void *data, + int (*match)(struct device *dev, const void *data)) { struct klist_iter i; struct device *dev; @@ -342,7 +342,7 @@ struct device *bus_find_device(struct bus_type *bus, } EXPORT_SYMBOL_GPL(bus_find_device); -static int match_name(struct device *dev, void *data) +static int match_name(struct device *dev, const void *data) { const char *name = data; diff --git a/drivers/base/devcon.c b/drivers/base/devcon.c index 04db9ae..ac026d5 100644 --- a/drivers/base/devcon.c +++ b/drivers/base/devcon.c @@ -107,7 +107,7 @@ static struct bus_type *generic_match_buses[] = { NULL, }; -static int device_fwnode_match(struct device *dev, void *fwnode) +static int device_fwnode_match(struct device *dev, const void *fwnode) { return dev_fwnode(dev) == fwnode; } diff --git a/drivers/char/ipmi/ipmi_si_platform.c b/drivers/char/ipmi/ipmi_si_platform.c index f2a91c4..fd94c42 100644 --- a/drivers/char/ipmi/ipmi_si_platform.c +++ b/drivers/char/ipmi/ipmi_si_platform.c @@ -426,7 +426,7 @@ static int ipmi_remove(struct platform_device *pdev) return ipmi_si_remove_by_dev(&pdev->dev); } -static int pdev_match_name(struct device *dev, void *data) +static int pdev_match_name(struct device *dev, const void *data) { struct platform_device *pdev = to_platform_device(dev); const char *name = data; diff --git a/drivers/firmware/efi/dev-path-parser.c b/drivers/firmware/efi/dev-path-parser.c index 85ec99f..2012338 100644 --- a/drivers/firmware/efi/dev-path-parser.c +++ b/drivers/firmware/efi/dev-path-parser.c @@ -17,9 +17,9 @@ struct acpi_hid_uid { char uid[11]; /* UINT_MAX + null byte */ }; -static int __init match_acpi_dev(struct device *dev, void *data) +static int __init match_acpi_dev(struct device *dev, const void *data) { - struct acpi_hid_uid hid_uid = *(struct acpi_hid_uid *)data; + struct acpi_hid_uid hid_uid = *(const struct acpi_hid_uid *)data; struct acpi_device *adev = to_acpi_device(dev); if (acpi_match_device_ids(adev, hid_uid.hid)) diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 80b7550..ad19df0 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -93,7 +93,7 @@ static struct bus_type mipi_dsi_bus_type = { .pm = &mipi_dsi_device_pm_ops, }; -static int of_device_match(struct device *dev, void *data) +static int of_device_match(struct device *dev, const void *data) { return dev->of_node == data; } diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 4b13028..b67ab6a 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -498,9 +498,9 @@ struct coresight_device *coresight_get_sink(struct list_head *path) return csdev; } -static int coresight_enabled_sink(struct device *dev, void *data) +static int coresight_enabled_sink(struct device *dev, const void *data) { - bool *reset = data; + const bool *reset = data; struct coresight_device *csdev = to_coresight_device(dev); if ((csdev->type == CORESIGHT_DEV_TYPE_SINK || @@ -544,7 +544,7 @@ struct coresight_device *coresight_get_enabled_sink(bool deactivate) return dev ? to_coresight_device(dev) : NULL; } -static int coresight_sink_by_id(struct device *dev, void *data) +static int coresight_sink_by_id(struct device *dev, const void *data) { struct coresight_device *csdev = to_coresight_device(dev); unsigned long hash; diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c index 7045930..3fc200e 100644 --- a/drivers/hwtracing/coresight/of_coresight.c +++ b/drivers/hwtracing/coresight/of_coresight.c @@ -18,7 +18,7 @@ #include -static int of_dev_node_match(struct device *dev, void *data) +static int of_dev_node_match(struct device *dev, const void *data) { return dev->of_node == data; } diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index 033dce5..5592289 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -789,10 +789,9 @@ static int intel_th_populate(struct intel_th *th) return 0; } -static int match_devt(struct device *dev, void *data) +static int match_devt(struct device *dev, const void *data) { - dev_t devt = (dev_t)(unsigned long)data; - + dev_t devt = (dev_t)(unsigned long)(void *)data; return dev->devt == devt; } diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index d840955..8af35f11 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -318,7 +318,7 @@ u32 i2c_acpi_find_bus_speed(struct device *dev) } EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed); -static int i2c_acpi_find_match_adapter(struct device *dev, void *data) +static int i2c_acpi_find_match_adapter(struct device *dev, const void *data) { struct i2c_adapter *adapter = i2c_verify_adapter(dev); @@ -328,7 +328,7 @@ static int i2c_acpi_find_match_adapter(struct device *dev, void *data) return ACPI_HANDLE(dev) == (acpi_handle)data; } -static int i2c_acpi_find_match_device(struct device *dev, void *data) +static int i2c_acpi_find_match_device(struct device *dev, const void *data) { return ACPI_COMPANION(dev) == data; } diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 406e5f6..2eb59a2 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -112,12 +112,12 @@ void of_i2c_register_devices(struct i2c_adapter *adap) of_node_put(bus); } -static int of_dev_node_match(struct device *dev, void *data) +static int of_dev_node_match(struct device *dev, const void *data) { return dev->of_node == data; } -static int of_dev_or_parent_node_match(struct device *dev, void *data) +static int of_dev_or_parent_node_match(struct device *dev, const void *data) { if (dev->of_node == data) return 1; diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 4a5eff3..c46fb59 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -93,7 +93,7 @@ static const struct iio_chan_spec #ifdef CONFIG_OF -static int iio_dev_node_match(struct device *dev, void *data) +static int iio_dev_node_match(struct device *dev, const void *data) { return dev->of_node == data && dev->type == &iio_device_type; } diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c index 4c5d0f1..fd90b05 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -4497,7 +4497,7 @@ static const struct acpi_device_id hns_roce_acpi_match[] = { }; MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match); -static int hns_roce_node_match(struct device *dev, void *fwnode) +static int hns_roce_node_match(struct device *dev, const void *fwnode) { return dev->fwnode == fwnode; } diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index 09c16d8..bb6586d 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -754,7 +754,7 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev) return (void *)misc_op; } -static int hns_dsaf_dev_match(struct device *dev, void *fwnode) +static int hns_dsaf_dev_match(struct device *dev, const void *fwnode) { return dev->fwnode == fwnode; } diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c index 48e0924..4e184ee 100644 --- a/drivers/net/ethernet/ti/cpsw-phy-sel.c +++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c @@ -151,9 +151,9 @@ static void cpsw_gmii_sel_dra7xx(struct cpsw_phy_sel_priv *priv, } static struct platform_driver cpsw_phy_sel_driver; -static int match(struct device *dev, void *data) +static int match(struct device *dev, const void *data) { - struct device_node *node = (struct device_node *)data; + const struct device_node *node = (const struct device_node *)data; return dev->of_node == node && dev->driver == &cpsw_phy_sel_driver.driver; } diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 4bf65ca..57d131a 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1371,7 +1371,7 @@ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd) return -EOPNOTSUPP; } -static int match_first_device(struct device *dev, void *data) +static int match_first_device(struct device *dev, const void *data) { if (dev->parent && dev->parent->of_node) return of_device_is_compatible(dev->parent->of_node, diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c index c50a977..8479a44 100644 --- a/drivers/net/ethernet/toshiba/tc35815.c +++ b/drivers/net/ethernet/toshiba/tc35815.c @@ -694,10 +694,10 @@ static int tc_mii_init(struct net_device *dev) * should provide a "tc35815-mac" device with a MAC address in its * platform_data. */ -static int tc35815_mac_match(struct device *dev, void *data) +static int tc35815_mac_match(struct device *dev, const void *data) { struct platform_device *plat_dev = to_platform_device(dev); - struct pci_dev *pci_dev = data; + const struct pci_dev *pci_dev = data; unsigned int id = pci_dev->irq; return !strcmp(plat_dev->name, "tc35815-mac") && plat_dev->id == id; } diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index c7892c3..ac5d945 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -76,7 +76,7 @@ static struct bus_type nvmem_bus_type = { .name = "nvmem", }; -static int of_nvmem_match(struct device *dev, void *nvmem_np) +static int of_nvmem_match(struct device *dev, const void *nvmem_np) { return dev->of_node == nvmem_np; } diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index de61573..dfe1294 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -282,7 +282,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) EXPORT_SYMBOL(of_mdiobus_register); /* Helper function for of_phy_find_device */ -static int of_phy_match(struct device *dev, void *phy_np) +static int of_phy_match(struct device *dev, const void *phy_np) { return dev->of_node == phy_np; } diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 04ad312..008d79e 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -37,7 +37,7 @@ static const struct of_device_id of_skipped_node_table[] = { {} /* Empty terminated list */ }; -static int of_dev_node_match(struct device *dev, void *data) +static int of_dev_node_match(struct device *dev, const void *data) { return dev->of_node == data; } diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 0e8e2c1..f9ef7ad 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -64,7 +64,7 @@ static struct resource *get_pci_domain_busn_res(int domain_nr) return &r->res; } -static int find_anything(struct device *dev, void *data) +static int find_anything(struct device *dev, const void *data) { return 1; } diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 5c79226..7f4e658 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -236,10 +236,10 @@ struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, } EXPORT_SYMBOL(pci_get_domain_bus_and_slot); -static int match_pci_dev_by_id(struct device *dev, void *data) +static int match_pci_dev_by_id(struct device *dev, const void *data) { struct pci_dev *pdev = to_pci_dev(dev); - struct pci_device_id *id = data; + const struct pci_device_id *id = data; if (pci_match_one_device(id, pdev)) return 1; diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index aea5029..7b8488d 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -434,10 +434,10 @@ static int css_probe_device(struct subchannel_id schid, struct schib *schib) } static int -check_subchannel(struct device * dev, void * data) +check_subchannel(struct device *dev, const void *data) { struct subchannel *sch; - struct subchannel_id *schid = data; + const struct subchannel_id *schid = data; sch = to_subchannel(dev); return schid_equal(&sch->schid, schid); diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 1540229..6ca9a3a 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -642,10 +642,10 @@ static int ccw_device_add(struct ccw_device *cdev) return device_add(dev); } -static int match_dev_id(struct device *dev, void *data) +static int match_dev_id(struct device *dev, const void *data) { struct ccw_device *cdev = to_ccwdev(dev); - struct ccw_dev_id *dev_id = data; + const struct ccw_dev_id *dev_id = data; return ccw_dev_id_is_equal(&cdev->private->dev_id, dev_id); } diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c index 6bca1d5..9f26d43 100644 --- a/drivers/s390/cio/scm.c +++ b/drivers/s390/cio/scm.c @@ -174,10 +174,10 @@ static void scmdev_update(struct scm_device *scmdev, struct sale *sale) kobject_uevent(&scmdev->dev.kobj, KOBJ_CHANGE); } -static int check_address(struct device *dev, void *data) +static int check_address(struct device *dev, const void *data) { struct scm_device *scmdev = to_scm_dev(dev); - struct sale *sale = data; + const struct sale *sale = data; return scmdev->address == sale->sa; } diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index b9fc502..b7902b6 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1356,16 +1356,16 @@ static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func) * Helper function to be used with bus_find_dev * matches for the card device with the given id */ -static int __match_card_device_with_id(struct device *dev, void *data) +static int __match_card_device_with_id(struct device *dev, const void *data) { - return is_card_dev(dev) && to_ap_card(dev)->id == (int)(long) data; + return is_card_dev(dev) && to_ap_card(dev)->id == (int)(long)(void *) data; } /* * Helper function to be used with bus_find_dev * matches for the queue device with a given qid */ -static int __match_queue_device_with_qid(struct device *dev, void *data) +static int __match_queue_device_with_qid(struct device *dev, const void *data) { return is_queue_dev(dev) && to_ap_queue(dev)->qid == (int)(long) data; } @@ -1374,7 +1374,7 @@ static int __match_queue_device_with_qid(struct device *dev, void *data) * Helper function to be used with bus_find_dev * matches any queue device with given queue id */ -static int __match_queue_device_with_queue_id(struct device *dev, void *data) +static int __match_queue_device_with_queue_id(struct device *dev, const void *data) { return is_queue_dev(dev) && AP_QID_QUEUE(to_ap_queue(dev)->qid) == (int)(long) data; diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index 7f0ceb6..c074631 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -372,7 +372,7 @@ static ssize_t proc_scsi_write(struct file *file, const char __user *buf, return err; } -static int always_match(struct device *dev, void *data) +static int always_match(struct device *dev, const void *data) { return 1; } diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 5e75944..3da1121 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3538,7 +3538,7 @@ EXPORT_SYMBOL_GPL(spi_write_then_read); /*-------------------------------------------------------------------------*/ #if IS_ENABLED(CONFIG_OF) -static int __spi_of_device_match(struct device *dev, void *data) +static int __spi_of_device_match(struct device *dev, const void *data) { return dev->of_node == data; } @@ -3639,7 +3639,7 @@ static int spi_acpi_controller_match(struct device *dev, const void *data) return ACPI_COMPANION(dev->parent) == data; } -static int spi_acpi_device_match(struct device *dev, void *data) +static int spi_acpi_device_match(struct device *dev, const void *data) { return ACPI_COMPANION(dev) == data; } diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c index 86a8545..3f8f340 100644 --- a/drivers/staging/most/core.c +++ b/drivers/staging/most/core.c @@ -561,9 +561,9 @@ static int split_string(char *buf, char **a, char **b, char **c, char **d) return 0; } -static int match_bus_dev(struct device *dev, void *data) +static int match_bus_dev(struct device *dev, const void *data) { - char *mdev_name = data; + const char *mdev_name = data; return !strcmp(dev_name(dev), mdev_name); } diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index c1b0165..c9a7e4a 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -1946,10 +1946,10 @@ struct tb_sw_lookup { u64 route; }; -static int tb_switch_match(struct device *dev, void *data) +static int tb_switch_match(struct device *dev, const void *data) { struct tb_switch *sw = tb_to_switch(dev); - struct tb_sw_lookup *lookup = data; + const struct tb_sw_lookup *lookup = data; if (!sw) return 0; diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index fa783531..7bd7de7 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -947,9 +947,9 @@ static int parse_usbdevfs_streams(struct usb_dev_state *ps, return ret; } -static int match_devt(struct device *dev, void *data) +static int match_devt(struct device *dev, const void *data) { - return dev->devt == (dev_t) (unsigned long) data; + return dev->devt == (dev_t)(unsigned long)(void *)data; } static struct usb_device *usbdev_lookup_by_devt(dev_t devt) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 7fcb9f7..1678e30 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -325,9 +325,9 @@ struct find_interface_arg { struct device_driver *drv; }; -static int __find_interface(struct device *dev, void *data) +static int __find_interface(struct device *dev, const void *data) { - struct find_interface_arg *arg = data; + const struct find_interface_arg *arg = data; struct usb_interface *intf; if (!is_usb_interface(dev)) diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c index a3cb25c..d16dfc3 100644 --- a/drivers/usb/phy/phy-am335x-control.c +++ b/drivers/usb/phy/phy-am335x-control.c @@ -118,9 +118,9 @@ static const struct of_device_id omap_control_usb_id_table[] = { MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); static struct platform_driver am335x_control_driver; -static int match(struct device *dev, void *data) +static int match(struct device *dev, const void *data) { - struct device_node *node = (struct device_node *)data; + const struct device_node *node = (const struct device_node *)data; return dev->of_node == node && dev->driver == &am335x_control_driver.driver; } diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c index 93b7d6a..6cf6fbd 100644 --- a/drivers/usb/phy/phy-isp1301.c +++ b/drivers/usb/phy/phy-isp1301.c @@ -142,9 +142,9 @@ static struct i2c_driver isp1301_driver = { module_i2c_driver(isp1301_driver); -static int match(struct device *dev, void *data) +static int match(struct device *dev, const void *data) { - struct device_node *node = (struct device_node *)data; + const struct device_node *node = (const struct device_node *)data; return (dev->of_node == node) && (dev->driver == &isp1301_driver.driver); } diff --git a/drivers/visorbus/visorbus_main.c b/drivers/visorbus/visorbus_main.c index 0b2434c..152fd29 100644 --- a/drivers/visorbus/visorbus_main.c +++ b/drivers/visorbus/visorbus_main.c @@ -171,10 +171,10 @@ struct visor_busdev { u32 dev_no; }; -static int match_visorbus_dev_by_id(struct device *dev, void *data) +static int match_visorbus_dev_by_id(struct device *dev, const void *data) { struct visor_device *vdev = to_visor_device(dev); - struct visor_busdev *id = data; + const struct visor_busdev *id = data; if (vdev->chipset_bus_no == id->bus_no && vdev->chipset_dev_no == id->dev_no) diff --git a/include/linux/device.h b/include/linux/device.h index e85264f..cbbdcadc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -166,8 +166,8 @@ void subsys_dev_iter_exit(struct subsys_dev_iter *iter); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); struct device *bus_find_device(struct bus_type *bus, struct device *start, - void *data, - int (*match)(struct device *dev, void *data)); + const void *data, + int (*match)(struct device *dev, const void *data)); struct device *bus_find_device_by_name(struct bus_type *bus, struct device *start, const char *name); diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c index 3d0cc6e..c04c9ed 100644 --- a/sound/soc/rockchip/rk3399_gru_sound.c +++ b/sound/soc/rockchip/rk3399_gru_sound.c @@ -405,7 +405,7 @@ static const struct dailink_match_data dailink_match[] = { }, }; -static int of_dev_node_match(struct device *dev, void *data) +static int of_dev_node_match(struct device *dev, const void *data) { return dev->of_node == data; }