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From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Dan Williams <dan.j.williams@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org,
	linux-mm@kvack.org, David Hildenbrand <david@redhat.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>
Subject: [PATCH v1 2/6] drivers/base/memory: Use "unsigned long" for block ids
Date: Fri, 14 Jun 2019 12:01:10 +0200
Message-ID: <20190614100114.311-3-david@redhat.com> (raw)
In-Reply-To: <20190614100114.311-1-david@redhat.com>

Block ids are just shifted section numbers, so let's also use
"unsigned long" for them, too.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 drivers/base/memory.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 5b3a2fd250ba..3ed08e67e64f 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -34,12 +34,12 @@ static DEFINE_MUTEX(mem_sysfs_mutex);
 
 static int sections_per_block;
 
-static inline int base_memory_block_id(unsigned long section_nr)
+static inline unsigned long base_memory_block_id(unsigned long section_nr)
 {
 	return section_nr / sections_per_block;
 }
 
-static inline int pfn_to_block_id(unsigned long pfn)
+static inline unsigned long pfn_to_block_id(unsigned long pfn)
 {
 	return base_memory_block_id(pfn_to_section_nr(pfn));
 }
@@ -587,7 +587,7 @@ int __weak arch_get_memory_phys_device(unsigned long start_pfn)
  * A reference for the returned object is held and the reference for the
  * hinted object is released.
  */
-static struct memory_block *find_memory_block_by_id(int block_id,
+static struct memory_block *find_memory_block_by_id(unsigned long block_id,
 						    struct memory_block *hint)
 {
 	struct device *hintdev = hint ? &hint->dev : NULL;
@@ -604,7 +604,7 @@ static struct memory_block *find_memory_block_by_id(int block_id,
 struct memory_block *find_memory_block_hinted(struct mem_section *section,
 					      struct memory_block *hint)
 {
-	int block_id = base_memory_block_id(__section_nr(section));
+	unsigned long block_id = base_memory_block_id(__section_nr(section));
 
 	return find_memory_block_by_id(block_id, hint);
 }
@@ -663,8 +663,8 @@ int register_memory(struct memory_block *memory)
 	return ret;
 }
 
-static int init_memory_block(struct memory_block **memory, int block_id,
-			     unsigned long state)
+static int init_memory_block(struct memory_block **memory,
+			     unsigned long block_id, unsigned long state)
 {
 	struct memory_block *mem;
 	unsigned long start_pfn;
@@ -730,8 +730,8 @@ static void unregister_memory(struct memory_block *memory)
  */
 int create_memory_block_devices(unsigned long start, unsigned long size)
 {
-	const int start_block_id = pfn_to_block_id(PFN_DOWN(start));
-	int end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
+	const unsigned long start_block_id = pfn_to_block_id(PFN_DOWN(start));
+	unsigned long end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
 	struct memory_block *mem;
 	unsigned long block_id;
 	int ret = 0;
@@ -767,10 +767,10 @@ int create_memory_block_devices(unsigned long start, unsigned long size)
  */
 void remove_memory_block_devices(unsigned long start, unsigned long size)
 {
-	const int start_block_id = pfn_to_block_id(PFN_DOWN(start));
-	const int end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
+	const unsigned long start_block_id = pfn_to_block_id(PFN_DOWN(start));
+	const unsigned long end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
 	struct memory_block *mem;
-	int block_id;
+	unsigned long block_id;
 
 	if (WARN_ON_ONCE(!IS_ALIGNED(start, memory_block_size_bytes()) ||
 			 !IS_ALIGNED(size, memory_block_size_bytes())))
-- 
2.21.0


  parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-14 10:01 [PATCH v1 0/6] mm: Further memory block device cleanups David Hildenbrand
2019-06-14 10:01 ` [PATCH v1 1/6] mm: Section numbers use the type "unsigned long" David Hildenbrand
2019-06-14 19:00   ` Andrew Morton
2019-06-14 19:34     ` David Hildenbrand
2019-06-15  8:06     ` Christophe Leroy
2019-06-18  1:57       ` Andrew Morton
2019-06-18 12:17         ` Michael Ellerman
2019-06-14 10:01 ` David Hildenbrand [this message]
2019-06-14 10:01 ` [PATCH v1 3/6] mm: Make register_mem_sect_under_node() static David Hildenbrand
2019-06-14 10:01 ` [PATCH v1 4/6] mm/memory_hotplug: Rename walk_memory_range() and pass start+size instead of pfns David Hildenbrand
2019-06-14 10:01 ` [PATCH v1 5/6] mm/memory_hotplug: Move and simplify walk_memory_blocks() David Hildenbrand
2019-06-14 10:01 ` [PATCH v1 6/6] drivers/base/memory.c: Get rid of find_memory_block_hinted() David Hildenbrand

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