diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/resource.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/kernel/resource.c b/kernel/resource.c index 82df80417489..833394f9c608 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -320,9 +320,8 @@ int release_resource(struct resource *old) EXPORT_SYMBOL(release_resource); /** - * Finds the lowest iomem resource that covers part of [@start..@end]. The - * caller must specify @start, @end, @flags, and @desc (which may be - * IORES_DESC_NONE). + * find_next_iomem_res - Finds the lowest iomem resource that covers part of + * [@start..@end]. * * If a resource is found, returns 0 and @*res is overwritten with the part * of the resource that's within [@start..@end]; if none is found, returns @@ -337,6 +336,9 @@ EXPORT_SYMBOL(release_resource); * @desc: descriptor the resource must have * @first_lvl: walk only the first level children, if set * @res: return ptr, if resource found + * + * The caller must specify @start, @end, @flags, and @desc + * (which may be IORES_DESC_NONE). */ static int find_next_iomem_res(resource_size_t start, resource_size_t end, unsigned long flags, unsigned long desc, @@ -416,11 +418,9 @@ static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end, } /** - * Walks through iomem resources and calls func() with matching resource - * ranges. This walks through whole tree and not just first level children. - * All the memory ranges which overlap start,end and also match flags and - * desc are valid candidates. - * + * walk_iomem_res_desc - Walks through iomem resources and calls func() + * with matching resource ranges. + * * * @desc: I/O resource descriptor. Use IORES_DESC_NONE to skip @desc check. * @flags: I/O resource flags * @start: start addr @@ -428,6 +428,10 @@ static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end, * @arg: function argument for the callback @func * @func: callback function that is called for each qualifying resource area * + * This walks through whole tree and not just first level children. + * All the memory ranges which overlap start,end and also match flags and + * desc are valid candidates. + * * NOTE: For a new descriptor search, define a new IORES_DESC in * <linux/ioport.h> and set it in 'desc' of a target resource entry. */ @@ -1372,9 +1376,9 @@ static bool system_ram_resources_mergeable(struct resource *r1, !r1->child && !r2->child; } -/* +/** * merge_system_ram_resource - mark the System RAM resource mergeable and try to - * merge it with adjacent, mergeable resources + * merge it with adjacent, mergeable resources * @res: resource descriptor * * This interface is intended for memory hotplug, whereby lots of contiguous |