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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	peterz@infradead.org, dave.hansen@linux.intel.com, hch@lst.de,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-acpi@vger.kernel.org
Subject: [PATCH v2 10/18] dax: Simplify root read-only definition for the 'resource' attribute
Date: Sun, 17 Nov 2019 09:45:27 -0800	[thread overview]
Message-ID: <157401272766.43284.6942797624123280468.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <157401267421.43284.2135775608523385279.stgit@dwillia2-desk3.amr.corp.intel.com>

Rather than update the permission in ->is_visible() set the permission
directly at declaration time.

Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/157309904959.1582359.7281180042781955506.stgit@dwillia2-desk3.amr.corp.intel.com
---
 drivers/dax/bus.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index f3e6e00ece40..ce6d648d7670 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -309,7 +309,7 @@ static ssize_t resource_show(struct device *dev,
 
 	return sprintf(buf, "%#llx\n", dev_dax_resource(dev_dax));
 }
-static DEVICE_ATTR_RO(resource);
+static DEVICE_ATTR(resource, 0400, resource_show, NULL);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
@@ -329,8 +329,6 @@ static umode_t dev_dax_visible(struct kobject *kobj, struct attribute *a, int n)
 
 	if (a == &dev_attr_target_node.attr && dev_dax_target_node(dev_dax) < 0)
 		return 0;
-	if (a == &dev_attr_resource.attr)
-		return 0400;
 	return a->mode;
 }
 
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WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Ira Weiny <ira.weiny@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	peterz@infradead.org, dave.hansen@linux.intel.com, hch@lst.de,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-acpi@vger.kernel.org
Subject: [PATCH v2 10/18] dax: Simplify root read-only definition for the 'resource' attribute
Date: Sun, 17 Nov 2019 09:45:27 -0800	[thread overview]
Message-ID: <157401272766.43284.6942797624123280468.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <157401267421.43284.2135775608523385279.stgit@dwillia2-desk3.amr.corp.intel.com>

Rather than update the permission in ->is_visible() set the permission
directly at declaration time.

Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/157309904959.1582359.7281180042781955506.stgit@dwillia2-desk3.amr.corp.intel.com
---
 drivers/dax/bus.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index f3e6e00ece40..ce6d648d7670 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -309,7 +309,7 @@ static ssize_t resource_show(struct device *dev,
 
 	return sprintf(buf, "%#llx\n", dev_dax_resource(dev_dax));
 }
-static DEVICE_ATTR_RO(resource);
+static DEVICE_ATTR(resource, 0400, resource_show, NULL);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
@@ -329,8 +329,6 @@ static umode_t dev_dax_visible(struct kobject *kobj, struct attribute *a, int n)
 
 	if (a == &dev_attr_target_node.attr && dev_dax_target_node(dev_dax) < 0)
 		return 0;
-	if (a == &dev_attr_resource.attr)
-		return 0400;
 	return a->mode;
 }
 


  parent reply	other threads:[~2019-11-17 17:59 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-17 17:44 [PATCH v2 00/18] Memory Hierarchy: Enable target node lookups for reserved memory Dan Williams
2019-11-17 17:44 ` Dan Williams
2019-11-17 17:44 ` [PATCH v2 01/18] libnvdimm: Move attribute groups to device type Dan Williams
2019-11-17 17:44   ` Dan Williams
2019-11-17 17:44 ` [PATCH v2 02/18] libnvdimm: Move region attribute group definition Dan Williams
2019-11-17 17:44   ` Dan Williams
2019-11-17 17:44 ` [PATCH v2 03/18] libnvdimm: Move nd_device_attribute_group to device_type Dan Williams
2019-11-17 17:44   ` Dan Williams
2019-11-17 17:44 ` [PATCH v2 04/18] libnvdimm: Move nd_numa_attribute_group " Dan Williams
2019-11-17 17:44   ` Dan Williams
2019-11-18  9:46   ` Aneesh Kumar K.V
2019-11-18  9:46     ` Aneesh Kumar K.V
2019-11-17 17:45 ` [PATCH v2 05/18] libnvdimm: Move nd_region_attribute_group " Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 06/18] libnvdimm: Move nd_mapping_attribute_group " Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 07/18] libnvdimm: Move nvdimm_attribute_group " Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 08/18] libnvdimm: Move nvdimm_bus_attribute_group " Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 09/18] dax: Create a dax device_type Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` Dan Williams [this message]
2019-11-17 17:45   ` [PATCH v2 10/18] dax: Simplify root read-only definition for the 'resource' attribute Dan Williams
2019-11-17 17:45 ` [PATCH v2 11/18] libnvdimm: " Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 12/18] dax: Add numa_node to the default device-dax attributes Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-17 17:45 ` [PATCH v2 13/18] libnvdimm: Export the target_node attribute for regions and namespaces Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-18  9:45   ` Aneesh Kumar K.V
2019-11-18  9:45     ` Aneesh Kumar K.V
2019-11-17 17:45 ` [PATCH v2 14/18] acpi/numa: Up-level "map to online node" functionality Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-29 11:56   ` Rafael J. Wysocki
2019-11-29 11:56     ` Rafael J. Wysocki
2019-11-17 17:45 ` [PATCH v2 15/18] mm/numa: Skip NUMA_NO_NODE and online nodes in numa_map_to_online_node() Dan Williams
2019-11-17 17:45   ` Dan Williams
2019-11-18  9:45   ` Aneesh Kumar K.V
2019-11-18  9:45     ` Aneesh Kumar K.V
2019-11-17 17:46 ` [PATCH v2 16/18] powerpc/papr_scm: Switch to numa_map_to_online_node() Dan Williams
2019-11-17 17:46   ` Dan Williams
2019-11-18  9:46   ` Aneesh Kumar K.V
2019-11-18  9:46     ` Aneesh Kumar K.V
2019-11-20 10:30   ` Michael Ellerman
2019-11-20 10:30     ` Michael Ellerman
2019-11-17 17:46 ` [PATCH v2 17/18] x86/numa: Provide a range-to-target_node lookup facility Dan Williams
2019-11-17 17:46   ` Dan Williams
2019-11-18 18:45   ` Dan Williams
2019-11-18 18:45     ` Dan Williams
2019-11-18 18:45     ` Dan Williams
2019-11-17 17:46 ` [PATCH v2 18/18] libnvdimm/e820: Retrieve and populate correct 'target_node' info Dan Williams
2019-11-17 17:46   ` Dan Williams

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