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authorJisheng Zhang <jszhang@kernel.org>2022-03-23 16:06:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-23 19:00:34 -0700
commit4ece09be9913a87ff99ea347fd7e7adad5bdbc8f (patch)
treece22b5fa3a00d3446f26a578437c348f9f0cc5a9 /arch/x86/kernel/setup.c
parentd414cb379ac35e3523484e1d866b27832c2218c7 (diff)
x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
Replace the conditional compilation using "#ifdef CONFIG_KEXEC_CORE" by a check for "IS_ENABLED(CONFIG_KEXEC_CORE)", to simplify the code and increase compile coverage. Link: https://lkml.kernel.org/r/20211206160514.2000-4-jszhang@kernel.org Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Acked-by: Baoquan He <bhe@redhat.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmer@rivosinc.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/kernel/setup.c')
-rw-r--r--arch/x86/kernel/setup.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 90d7e1788c91..c95b9ac5a457 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -411,8 +411,6 @@ static void __init memblock_x86_reserve_range_setup_data(void)
* --------- Crashkernel reservation ------------------------------
*/
-#ifdef CONFIG_KEXEC_CORE
-
/* 16M alignment for crash kernel regions */
#define CRASH_ALIGN SZ_16M
@@ -490,6 +488,9 @@ static void __init reserve_crashkernel(void)
bool high = false;
int ret;
+ if (!IS_ENABLED(CONFIG_KEXEC_CORE))
+ return;
+
total_mem = memblock_phys_mem_size();
/* crashkernel=XM */
@@ -555,11 +556,6 @@ static void __init reserve_crashkernel(void)
crashk_res.end = crash_base + crash_size - 1;
insert_resource(&iomem_resource, &crashk_res);
}
-#else
-static void __init reserve_crashkernel(void)
-{
-}
-#endif
static struct resource standard_io_resources[] = {
{ .name = "dma1", .start = 0x00, .end = 0x1f,