Use SZ_1M macro instead of hardcoded 1<<20 to make code more readable.

Signed-off-by: Yuntao Wang <[email protected]>
---
 arch/x86/kernel/crash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 792231a56d11..249b5876e7ec 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -170,7 +170,7 @@ static int elf_header_exclude_ranges(struct crash_mem *cmem)
        int ret = 0;
 
        /* Exclude the low 1M because it is always reserved */
-       ret = crash_exclude_mem_range(cmem, 0, (1<<20)-1);
+       ret = crash_exclude_mem_range(cmem, 0, SZ_1M - 1);
        if (ret)
                return ret;
 
-- 
2.43.0


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