diff options
| author | Thiago Jung Bauermann <bauerman@linux.ibm.com> | 2019-08-20 04:13:17 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-30 01:55:40 +0200 |
| commit | e311a92da18cbdd4972dab0cda88b1b8484b8fef (patch) | |
| tree | 400e70fe5652909eb2be4172715076cbb66ef89f /arch/powerpc/kernel/paca.c | |
| parent | powerpc: Introduce the MSR_S bit (diff) | |
| download | linux-e311a92da18cbdd4972dab0cda88b1b8484b8fef.tar.xz linux-e311a92da18cbdd4972dab0cda88b1b8484b8fef.zip | |
powerpc/pseries: Add and use LPPACA_SIZE constant
Helps document what the hard-coded number means.
Also take the opportunity to fix an #endif comment.
Suggested-by: Alexey Kardashevskiy <aik@linux.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820021326.6884-8-bauerman@linux.ibm.com
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/kernel/paca.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index e3ad8aa4730d..612fc87ef785 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -52,6 +52,8 @@ static void *__init alloc_paca_data(unsigned long size, unsigned long align, #ifdef CONFIG_PPC_PSERIES +#define LPPACA_SIZE 0x400 + /* * See asm/lppaca.h for more detail. * @@ -65,7 +67,7 @@ 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, @@ -75,19 +77,18 @@ 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(sizeof(struct lppaca) > LPPACA_SIZE); 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; } -#endif /* CONFIG_PPC_BOOK3S */ +#endif /* CONFIG_PPC_PSERIES */ #ifdef CONFIG_PPC_BOOK3S_64 |