Messages in this thread Patch in this message | | | From | Yuntao Wang <> | Subject | [PATCH] x86/kexec: Simplify the logic of mem_region_callback() | Date | Tue, 12 Dec 2023 23:05:06 +0800 |
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The expression `mstart + resource_size(res) - 1` is actually equivalent to `res->end`, simplify the logic of this function to improve readability.
Signed-off-by: Yuntao Wang <ytcoode@gmail.com> --- arch/x86/kernel/machine_kexec_64.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index 1a3e2c05a8a5..6f8df998890e 100644 --- a/arch/x86/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c @@ -42,12 +42,9 @@ struct init_pgtable_data { static int mem_region_callback(struct resource *res, void *arg) { struct init_pgtable_data *data = arg; - unsigned long mstart, mend; - - mstart = res->start; - mend = mstart + resource_size(res) - 1; - return kernel_ident_mapping_init(data->info, data->level4p, mstart, mend); + return kernel_ident_mapping_init(data->info, data->level4p, + res->start, res->end); } static int -- 2.43.0
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