[PATCH v18 07/17] x86/setup: Eliminate a magic number in reserve_crashkernel()
From: Zhen Lei <hidden>
Date: 2021-12-22 13:13:27
Also in:
kexec, linux-arm-kernel, linux-devicetree, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Chen Zhou <redacted> Replace '(1ULL << 32)' with CRASH_ADDR_LOW_MAX to improve readability, they are equal. Signed-off-by: Chen Zhou <redacted> Signed-off-by: Zhen Lei <redacted> --- arch/x86/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 52aa925877ca787..abff57ffbe92884 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c@@ -523,7 +523,7 @@ static void __init reserve_crashkernel(void) } #ifdef CONFIG_X86_64 - if (crash_base >= (1ULL << 32)) { + if (crash_base >= CRASH_ADDR_LOW_MAX) { /* * Ensure that at least 256M extra low memory is allocated for * DMA buffers and swiotlb, if low memory size is not specified.
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2.25.1