Messages in this thread | | | Date | Fri, 12 Aug 2016 13:43:45 +0100 | From | Mark Rutland <> | Subject | Re: [PATCH v3 4/4] arm64: apply __ro_after_init to some objects |
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Hi,
There are still a few missing includes as of this patch, and I have a small nit about one file as commented below.
Please fix up the includes.
On Fri, Aug 12, 2016 at 04:01:11PM +0800, Jisheng Zhang wrote: > diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c > index c7cfb8f..6d32d1a 100644 > --- a/arch/arm64/kernel/cpu_ops.c > +++ b/arch/arm64/kernel/cpu_ops.c > @@ -28,7 +28,7 @@ extern const struct cpu_operations smp_spin_table_ops; > extern const struct cpu_operations acpi_parking_protocol_ops; > extern const struct cpu_operations cpu_psci_ops; > > -const struct cpu_operations *cpu_ops[NR_CPUS]; > +const struct cpu_operations *cpu_ops[NR_CPUS] __ro_after_init;
This file is missing a <linux/cache.h> include for __ro_after_init.
> static const struct cpu_operations *dt_supported_cpu_ops[] __initconst = { > &smp_spin_table_ops, > diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c > index 8ebabc4..93c47e1 100644 > --- a/arch/arm64/kernel/kaslr.c > +++ b/arch/arm64/kernel/kaslr.c > @@ -20,7 +20,7 @@ > #include <asm/pgtable.h> > #include <asm/sections.h> > > -u64 module_alloc_base __read_mostly; > +u64 module_alloc_base __ro_after_init;
Likewise.
> u16 memstart_offset_seed __initdata; > > static __init u64 get_kaslr_seed(void *fdt) > diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c > index 10ad8ab..c1ff7c2 100644 > --- a/arch/arm64/kernel/vdso.c > +++ b/arch/arm64/kernel/vdso.c > @@ -19,6 +19,7 @@ > */ > > #include <linux/kernel.h> > +#include <linux/cache.h> > #include <linux/clocksource.h> > #include <linux/elf.h> > #include <linux/err.h>
Nit: Could you please sort this list? Everything but <linux/kernel.h> is already in order.
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c > index c4284c4..59d44e7 100644 > --- a/arch/arm64/mm/dma-mapping.c > +++ b/arch/arm64/mm/dma-mapping.c > @@ -30,7 +30,7 @@ > > #include <asm/cacheflush.h> > > -static int swiotlb __read_mostly; > +static int swiotlb __ro_after_init;
This file is missing a <linux/cache.h> include for __ro_after_init.
> > static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot, > bool coherent) > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c > index bbb7ee7..e8b81ea 100644 > --- a/arch/arm64/mm/init.c > +++ b/arch/arm64/mm/init.c > @@ -55,8 +55,8 @@ > * executes, which assigns it its actual value. So use a default value > * that cannot be mistaken for a real physical address. > */ > -s64 memstart_addr __read_mostly = -1; > -phys_addr_t arm64_dma_phys_limit __read_mostly; > +s64 memstart_addr __ro_after_init = -1; > +phys_addr_t arm64_dma_phys_limit __ro_after_init;
Likewise.
> #ifdef CONFIG_BLK_DEV_INITRD > static int __init early_initrd(char *p) > diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c > index 4989948..6029bed 100644 > --- a/arch/arm64/mm/mmu.c > +++ b/arch/arm64/mm/mmu.c > @@ -46,7 +46,7 @@ > > u64 idmap_t0sz = TCR_T0SZ(VA_BITS); > > -u64 kimage_voffset __read_mostly; > +u64 kimage_voffset __ro_after_init;
Likewise.
Thanks, Mark.
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