mirror of https://gitee.com/openkylin/linux.git
x86: fix arch/x86/kernel/cpu/mtrr/main.c warning
fix this warning reported by Andrew Morton: > arch/x86/kernel/cpu/mtrr/main.c: In function 'mtrr_bp_init': > arch/x86/kernel/cpu/mtrr/main.c:1170: warning: 'extra_remove_base' may be used uninitialized in this function the warning is bogus but the logic that prevents uninitialized use is a bit convoluted so simplify it all. Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
5e51900be6
commit
279b0bbba2
|
@ -1218,11 +1218,10 @@ static int __init mtrr_cleanup(unsigned address_bits)
|
||||||
|
|
||||||
memset(range, 0, sizeof(range));
|
memset(range, 0, sizeof(range));
|
||||||
extra_remove_size = 0;
|
extra_remove_size = 0;
|
||||||
if (mtrr_tom2) {
|
extra_remove_base = 1 << (32 - PAGE_SHIFT);
|
||||||
extra_remove_base = 1 << (32 - PAGE_SHIFT);
|
if (mtrr_tom2)
|
||||||
extra_remove_size =
|
extra_remove_size =
|
||||||
(mtrr_tom2 >> PAGE_SHIFT) - extra_remove_base;
|
(mtrr_tom2 >> PAGE_SHIFT) - extra_remove_base;
|
||||||
}
|
|
||||||
nr_range = x86_get_mtrr_mem_range(range, 0, extra_remove_base,
|
nr_range = x86_get_mtrr_mem_range(range, 0, extra_remove_base,
|
||||||
extra_remove_size);
|
extra_remove_size);
|
||||||
range_sums = sum_ranges(range, nr_range);
|
range_sums = sum_ranges(range, nr_range);
|
||||||
|
|
Loading…
Reference in New Issue