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Date: Tue, 11 Jan 2022 09:29:30 -0800 (PST) From: Palmer Dabbelt <palmer@...belt.com> To: jszhang@...nel.org CC: linux@...linux.org.uk, catalin.marinas@....com, Will Deacon <will@...nel.org>, Paul Walmsley <paul.walmsley@...ive.com>, aou@...s.berkeley.edu, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com, ebiederm@...ssion.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, kexec@...ts.infradead.org, alex@...ti.fr Subject: Re: [PATCH v2 2/5] riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef On Mon, 06 Dec 2021 08:05:11 PST (-0800), jszhang@...nel.org wrote: > 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. > > Signed-off-by: Jisheng Zhang <jszhang@...nel.org> > --- > arch/riscv/mm/init.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c > index a15640eeb334..84879a5ce818 100644 > --- a/arch/riscv/mm/init.c > +++ b/arch/riscv/mm/init.c > @@ -748,7 +748,6 @@ static inline void setup_vm_final(void) > } > #endif /* CONFIG_MMU */ > > -#ifdef CONFIG_KEXEC_CORE > /* > * reserve_crashkernel() - reserves memory for crash kernel > * > @@ -765,6 +764,8 @@ static void __init reserve_crashkernel(void) > > int ret = 0; > > + if (!IS_ENABLED(CONFIG_KEXEC_CORE)) > + return; > /* > * Don't reserve a region for a crash kernel on a crash kernel > * since it doesn't make much sense and we have limited memory > @@ -805,7 +806,6 @@ static void __init reserve_crashkernel(void) > crashk_res.start = crash_base; > crashk_res.end = crash_base + crash_size - 1; > } > -#endif /* CONFIG_KEXEC_CORE */ > > void __init paging_init(void) > { > @@ -819,9 +819,7 @@ void __init misc_mem_init(void) > arch_numa_init(); > sparse_init(); > zone_sizes_init(); > -#ifdef CONFIG_KEXEC_CORE > reserve_crashkernel(); > -#endif > memblock_dump_all(); > } Acked-by: Palmer Dabbelt <palmer@...osinc.com> LMK if you wanted me to take this through the RISC-V tree, otherwise I'm going to assume all these are going in together. Thanks!
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