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| author | David S. Miller <davem@davemloft.net> | 2011-02-26 23:40:02 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-16 18:19:15 -0700 |
| commit | c6fee0810df4e0f4cf9c4834d2569ca01c02cffc (patch) | |
| tree | 7b6adabf750ca0279895f8b9aa8a42eb9837e4e2 /arch/sparc/kernel/smp_64.c | |
| parent | 0399bb5b918bd8ffbf065a3db142ff121aaa18e0 (diff) | |
| download | linux-c6fee0810df4e0f4cf9c4834d2569ca01c02cffc.tar.bz2 | |
sparc64: Fix build errors with gcc-4.6.0
Most of the warnings emitted (we fail arch/sparc file
builds with -Werror) were legitimate but harmless, however
one case (n2_pcr_write) was a genuine bug.
Based almost entirely upon a patch by Sam Ravnborg.
Reported-by: Dennis Gilmore <dennis@ausil.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/smp_64.c')
| -rw-r--r-- | arch/sparc/kernel/smp_64.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 555a76d1f4a1..3e94a8c23238 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -189,7 +189,7 @@ static inline long get_delta (long *rt, long *master) void smp_synchronize_tick_client(void) { long i, delta, adj, adjust_latency = 0, done = 0; - unsigned long flags, rt, master_time_stamp, bound; + unsigned long flags, rt, master_time_stamp; #if DEBUG_TICK_SYNC struct { long rt; /* roundtrip time */ @@ -208,10 +208,8 @@ void smp_synchronize_tick_client(void) { for (i = 0; i < NUM_ROUNDS; i++) { delta = get_delta(&rt, &master_time_stamp); - if (delta == 0) { + if (delta == 0) done = 1; /* let's lock on to this... */ - bound = rt; - } if (!done) { if (i > 0) { @@ -933,13 +931,12 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu) void flush_dcache_page_all(struct mm_struct *mm, struct page *page) { void *pg_addr; - int this_cpu; u64 data0; if (tlb_type == hypervisor) return; - this_cpu = get_cpu(); + preempt_disable(); #ifdef CONFIG_DEBUG_DCFLUSH atomic_inc(&dcpage_flushes); @@ -964,7 +961,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page) } __local_flush_dcache_page(page); - put_cpu(); + preempt_enable(); } void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs) |