walk_iomem_res

函数名称：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.

函数原型：int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start, u64 end, void *arg, int (*func)(struct resource *, void *))

返回类型：int

参数：

类型	参数	名称
unsigned long	desc
unsigned long	flags
u64	start
u64	end
void *	arg
int (*	func

**调用者**
名称	描述
crash_setup_memmap_entries	Prepare memory map for crash dump kernel
register_e820_pmem
kexec_walk_resources	kexec_walk_resources - call func(data) on free memory regions@kbuf: Context info for the search. Also passed to @func.@func: Function to call for each memory region.* Return: The memory walk will stop when func returns a non-zero value

函数逻辑报告