resource: remove deprecated __check_region() and friends
PATCH 1/1 resource: 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 <[email protected]>
--- include/linux/ioport.h | 8 -------- kernel/resource.c | 32 -------------------------------- 2 files changed, 40 deletions(-)
include/linux/ioport.h +0 -8
@@ -196,10 +196,8 @@ extern struct resource * __request_region(struct resource *,/* 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(struct resource *, resource_size_t, 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 ;
kernel/resource.c +0 -32
@@ -1034,8 +1034,6 @@ resource_size_t resource_alignment(struct resource *res)* * 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(struct resource *parent,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
Signature · 1 line
2.1.0