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authorToshi Kani <toshi.kani@hpe.com>2016-01-26 21:57:32 +0100
committerIngo Molnar <mingo@kernel.org>2016-01-30 09:49:59 +0100
commita8fc42530ddd19d7580fe8c9f2ea86220a97e94c (patch)
treecf9eda28772e7868a1af2c0788aa08527a2f38f7 /kernel/resource.c
parentx86/kexec: Remove walk_iomem_res() call with GART type (diff)
downloadlinux-a8fc42530ddd19d7580fe8c9f2ea86220a97e94c.tar.xz
linux-a8fc42530ddd19d7580fe8c9f2ea86220a97e94c.zip
resource: Kill walk_iomem_res()
walk_iomem_res_desc() replaced walk_iomem_res() and there is no caller to walk_iomem_res() any more. Kill it. Also remove @name from find_next_iomem_res() as it is no longer used. Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Dave Young <dyoung@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hanjun Guo <hanjun.guo@linaro.org> Cc: Jakub Sitnicki <jsitnicki@gmail.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: linux-arch@vger.kernel.org Cc: linux-mm <linux-mm@kvack.org> Link: http://lkml.kernel.org/r/1453841853-11383-17-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c49
1 files changed, 5 insertions, 44 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 37ed2fcb8246..49834309043c 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -335,13 +335,12 @@ EXPORT_SYMBOL(release_resource);
/*
* Finds the lowest iomem resource existing within [res->start.res->end).
* The caller must specify res->start, res->end, res->flags, and optionally
- * desc and "name". If found, returns 0, res is overwritten, if not found,
- * returns -1.
+ * desc. If found, returns 0, res is overwritten, if not found, returns -1.
* This function walks the whole tree and not just first level children until
* and unless first_level_children_only is true.
*/
static int find_next_iomem_res(struct resource *res, unsigned long desc,
- char *name, bool first_level_children_only)
+ bool first_level_children_only)
{
resource_size_t start, end;
struct resource *p;
@@ -363,8 +362,6 @@ static int find_next_iomem_res(struct resource *res, unsigned long desc,
continue;
if ((desc != IORES_DESC_NONE) && (desc != p->desc))
continue;
- if (name && strcmp(p->name, name))
- continue;
if (p->start > end) {
p = NULL;
break;
@@ -411,7 +408,7 @@ int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
orig_end = res.end;
while ((res.start < res.end) &&
- (!find_next_iomem_res(&res, desc, NULL, false))) {
+ (!find_next_iomem_res(&res, desc, false))) {
ret = (*func)(res.start, res.end, arg);
if (ret)
@@ -425,42 +422,6 @@ int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
}
/*
- * Walks through iomem resources and calls @func with matching resource
- * ranges. This walks the whole tree and not just first level children.
- * All the memory ranges which overlap start,end and also match flags and
- * name are valid candidates.
- *
- * @name: name of resource
- * @flags: resource flags
- * @start: start addr
- * @end: end addr
- *
- * NOTE: This function is deprecated and should not be used in new code.
- * Use walk_iomem_res_desc(), instead.
- */
-int walk_iomem_res(char *name, unsigned long flags, u64 start, u64 end,
- void *arg, int (*func)(u64, u64, void *))
-{
- struct resource res;
- u64 orig_end;
- int ret = -1;
-
- res.start = start;
- res.end = end;
- res.flags = flags;
- orig_end = res.end;
- while ((res.start < res.end) &&
- (!find_next_iomem_res(&res, IORES_DESC_NONE, name, false))) {
- ret = (*func)(res.start, res.end, arg);
- if (ret)
- break;
- res.start = res.end + 1;
- res.end = orig_end;
- }
- return ret;
-}
-
-/*
* This function calls the @func callback against all memory ranges of type
* System RAM which are marked as IORESOURCE_SYSTEM_RAM and IORESOUCE_BUSY.
* Now, this function is only for System RAM, it deals with full ranges and
@@ -479,7 +440,7 @@ int walk_system_ram_res(u64 start, u64 end, void *arg,
res.flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
orig_end = res.end;
while ((res.start < res.end) &&
- (!find_next_iomem_res(&res, IORES_DESC_NONE, NULL, true))) {
+ (!find_next_iomem_res(&res, IORES_DESC_NONE, true))) {
ret = (*func)(res.start, res.end, arg);
if (ret)
break;
@@ -509,7 +470,7 @@ int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
res.flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
orig_end = res.end;
while ((res.start < res.end) &&
- (find_next_iomem_res(&res, IORES_DESC_NONE, NULL, true) >= 0)) {
+ (find_next_iomem_res(&res, IORES_DESC_NONE, true) >= 0)) {
pfn = (res.start + PAGE_SIZE - 1) >> PAGE_SHIFT;
end_pfn = (res.end + 1) >> PAGE_SHIFT;
if (end_pfn > pfn)