The patch titled
Subject: kernel/resource.c: remove deprecated __check_region() and friends
has been added to the -mm tree. Its filename is
resource-remove-deprecated-__check_region-and-friends.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/resource-remove-deprecated-__check_region-and-friends.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/resource-remove-deprecated-__check_region-and-friends.patch
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------------------------------------------------------
From: Jakub Sitnicki <jsitnicki@xxxxxxxxx>
Subject: kernel/resource.c: remove deprecated __check_region() and friends
All users of __check_region(), check_region(), and check_mem_region() are
gone. We got rid of the last user in v4.0-rc1. Remove them.
bloat-o-meter on x86_64 shows:
add/remove: 0/3 grow/shrink: 0/0 up/down: 0/-102 (-102)
function old new delta
__kstrtab___check_region 15 - -15
__ksymtab___check_region 16 - -16
__check_region 71 - -71
Signed-off-by: Jakub Sitnicki <jsitnicki@xxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/ioport.h | 8 --------
kernel/resource.c | 32 --------------------------------
2 files changed, 40 deletions(-)
diff -puN include/linux/ioport.h~resource-remove-deprecated-__check_region-and-friends include/linux/ioport.h
--- a/include/linux/ioport.h~resource-remove-deprecated-__check_region-and-friends
+++ a/include/linux/ioport.h
@@ -196,10 +196,8 @@ extern struct resource * __request_regio
/* Compatibility cruft */
#define release_region(start,n) __release_region(&ioport_resource, (start), (n))
-#define check_mem_region(start,n) __check_region(&iomem_resource, (start), (n))
#define release_mem_region(start,n) __release_region(&iomem_resource, (start), (n))
-extern int __check_region(struct resource *, resource_size_t, resource_size_t);
extern void __release_region(struct resource *, resource_size_t,
resource_size_t);
#ifdef CONFIG_MEMORY_HOTREMOVE
@@ -207,12 +205,6 @@ extern int release_mem_region_adjustable
resource_size_t);
#endif
-static inline int __deprecated check_region(resource_size_t s,
- resource_size_t n)
-{
- return __check_region(&ioport_resource, s, n);
-}
-
/* Wrappers for managed devices */
struct device;
diff -puN kernel/resource.c~resource-remove-deprecated-__check_region-and-friends kernel/resource.c
--- a/kernel/resource.c~resource-remove-deprecated-__check_region-and-friends
+++ a/kernel/resource.c
@@ -1034,8 +1034,6 @@ resource_size_t resource_alignment(struc
*
* request_region creates a new busy region.
*
- * check_region returns non-zero if the area is already busy.
- *
* release_region releases a matching busy region.
*/
@@ -1098,36 +1096,6 @@ struct resource * __request_region(struc
EXPORT_SYMBOL(__request_region);
/**
- * __check_region - check if a resource region is busy or free
- * @parent: parent resource descriptor
- * @start: resource start address
- * @n: resource region size
- *
- * Returns 0 if the region is free at the moment it is checked,
- * returns %-EBUSY if the region is busy.
- *
- * NOTE:
- * This function is deprecated because its use is racy.
- * Even if it returns 0, a subsequent call to request_region()
- * may fail because another driver etc. just allocated the region.
- * Do NOT use it. It will be removed from the kernel.
- */
-int __check_region(struct resource *parent, resource_size_t start,
- resource_size_t n)
-{
- struct resource * res;
-
- res = __request_region(parent, start, n, "check-region", 0);
- if (!res)
- return -EBUSY;
-
- release_resource(res);
- free_resource(res);
- return 0;
-}
-EXPORT_SYMBOL(__check_region);
-
-/**
* __release_region - release a previously reserved resource region
* @parent: parent resource descriptor
* @start: resource start address
_
Patches currently in -mm which might be from jsitnicki@xxxxxxxxx are
resource-remove-deprecated-__check_region-and-friends.patch
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