diff options
| author | David S. Miller <davem@davemloft.net> | 2009-09-04 03:38:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-04 03:39:45 -0700 |
| commit | bd4352cadfacb9084c97c853b025fac010266c26 (patch) | |
| tree | ef54f0801dce4822df71cca587421446ad259ebd /arch/sparc/kernel | |
| parent | e6617c6ec28a17cf2f90262b835ec05b9b861400 (diff) | |
sparc64: Fix bootup with mcount in some configs.
Functions invoked early when booting up a cpu can't use
tracing because mcount requires a valid 'current_thread_info()'
and TLB mappings to be setup.
The code path of sun4v_register_mondo_queues --> register_one_mondo
is one such case. sun4v_register_mondo_queues already has the
necessary 'notrace' annotation, but register_one_mondo does not.
Normally register_one_mondo is inlined so the bug doesn't trigger,
but with some config/compiler combinations, it won't be so we
must properly mark it notrace.
While we're here, add 'notrace' annoations to prom_printf and
prom_halt so that early error handling won't have the same problem.
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Reported-by: Leif Sawyer <lsawyer@gci.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/irq_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index f0ee7905540..8daab33fc17 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -886,7 +886,7 @@ void notrace init_irqwork_curcpu(void) * Therefore you cannot make any OBP calls, not even prom_printf, * from these two routines. */ -static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) +static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) { unsigned long num_entries = (qmask + 1) / 64; unsigned long status; |