Messages in this thread Patch in this message | | | From | Thiago Jung Bauermann <> | Subject | [RFC PATCH 08/11] powerpc: Add and use LPPACA_SIZE constant | Date | Fri, 24 Aug 2018 13:25:32 -0300 |
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Helps document what the hard-coded number means.
Suggested-by: Alexey Kardashevskiy <aik@linux.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> --- arch/powerpc/kernel/paca.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 0ee3e6d50f28..1edf8695019d 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -24,6 +24,8 @@ #define boot_cpuid 0 #endif +#define LPPACA_SIZE 0x400 + static void *__init alloc_paca_data(unsigned long size, unsigned long align, unsigned long limit, int cpu) { @@ -70,7 +72,7 @@ static inline void init_lppaca(struct lppaca *lppaca) *lppaca = (struct lppaca) { .desc = cpu_to_be32(0xd397d781), /* "LpPa" */ - .size = cpu_to_be16(0x400), + .size = cpu_to_be16(LPPACA_SIZE), .fpregs_in_use = 1, .slb_count = cpu_to_be16(64), .vmxregs_in_use = 0, @@ -80,14 +82,13 @@ static inline void init_lppaca(struct lppaca *lppaca) static struct lppaca * __init new_lppaca(int cpu, unsigned long limit) { struct lppaca *lp; - size_t size = 0x400; - BUILD_BUG_ON(size < sizeof(struct lppaca)); + BUILD_BUG_ON(LPPACA_SIZE < sizeof(struct lppaca)); if (early_cpu_has_feature(CPU_FTR_HVMODE)) return NULL; - lp = alloc_paca_data(size, 0x400, limit, cpu); + lp = alloc_paca_data(LPPACA_SIZE, 0x400, limit, cpu); init_lppaca(lp); return lp;
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