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authorTom Lendacky <thomas.lendacky@amd.com>2017-10-20 16:30:51 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-11-07 15:35:57 +0100
commit1d2e733b13b450e5854f4a8f8efcd77fa7362d62 (patch)
treea38738ce58e19cb5fb1f3d95e24e75cb1ab8fdf7 /kernel/resource.c
parentresource: Consolidate resource walking code (diff)
downloadlinux-1d2e733b13b450e5854f4a8f8efcd77fa7362d62.tar.xz
linux-1d2e733b13b450e5854f4a8f8efcd77fa7362d62.zip
resource: Provide resource struct in resource walk callback
In preperation for a new function that will need additional resource information during the resource walk, update the resource walk callback to pass the resource structure. Since the current callback start and end arguments are pulled from the resource structure, the callback functions can obtain them from the resource structure directly. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Cc: kvm@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lkml.kernel.org/r/20171020143059.3291-10-brijesh.singh@amd.com
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 7323c1b636cd..8430042fa77b 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -402,14 +402,15 @@ static int find_next_iomem_res(struct resource *res, unsigned long desc,
static int __walk_iomem_res_desc(struct resource *res, unsigned long desc,
bool first_level_children_only,
- void *arg, int (*func)(u64, u64, void *))
+ void *arg,
+ int (*func)(struct resource *, void *))
{
u64 orig_end = res->end;
int ret = -1;
while ((res->start < res->end) &&
!find_next_iomem_res(res, desc, first_level_children_only)) {
- ret = (*func)(res->start, res->end, arg);
+ ret = (*func)(res, arg);
if (ret)
break;
@@ -435,7 +436,7 @@ static int __walk_iomem_res_desc(struct resource *res, unsigned long desc,
* <linux/ioport.h> and set it in 'desc' of a target resource entry.
*/
int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
- u64 end, void *arg, int (*func)(u64, u64, void *))
+ u64 end, void *arg, int (*func)(struct resource *, void *))
{
struct resource res;
@@ -454,7 +455,7 @@ int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
* ranges.
*/
int walk_system_ram_res(u64 start, u64 end, void *arg,
- int (*func)(u64, u64, void *))
+ int (*func)(struct resource *, void *))
{
struct resource res;