x86/crash: Use resource_size()

Use resource_size() rather than a verbose computation on
the end and start fields.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

<smpl>
@@ struct resource ptr; @@
- (ptr.end - ptr.start + 1)
+ resource_size(&ptr)
</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/1577900990-8588-10-git-send-email-Julia.Lawall@inria.fr

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 00fc55ac7ffa848064c9368682dd198ec7590b0a..fd87b59452a3ecc06ca901d3900d3b443d36bf4f 100644 (file)
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -370,7 +370,7 @@ int crash_setup_memmap_entries(struct kimage *image, struct boot_params *params)
        /* Add crashk_low_res region */
        if (crashk_low_res.end) {
                ei.addr = crashk_low_res.start;
-               ei.size = crashk_low_res.end - crashk_low_res.start + 1;
+               ei.size = resource_size(&crashk_low_res);
                ei.type = E820_TYPE_RAM;
                add_e820_entry(params, &ei);
        }