MIPS: use resource_size

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

The semantic patch that makes these changes 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>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: kernel-janitors@vger.kernel.org
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c3d4212..701f4bc 100644 (file)
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -515,8 +515,7 @@ static void __init request_crashkernel(struct resource *res)
        ret = request_resource(res, &crashk_res);
        if (!ret)
                pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n",
-                       (unsigned long)((crashk_res.end -
-                                        crashk_res.start + 1) >> 20),
+                       (unsigned long)(resource_size(&crashk_res) >> 20),
                        (unsigned long)(crashk_res.start  >> 20));
 }
 #else /* !defined(CONFIG_KEXEC)                */
@@ -698,8 +697,7 @@ static void __init arch_mem_init(char **cmdline_p)
        mips_parse_crashkernel();
 #ifdef CONFIG_KEXEC
        if (crashk_res.start != crashk_res.end)
-               memblock_reserve(crashk_res.start,
-                                crashk_res.end - crashk_res.start + 1);
+               memblock_reserve(crashk_res.start, resource_size(&crashk_res));
 #endif
        device_tree_init();
        sparse_init();