hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

x86/apic: Only compile local function if used with !CONFIG_GENERIC_PENDING_IRQ 

The local function io_apic_level_ack_pending() is only called
from io_apic_level_ack_pending(). The later function is only
compiled if CONFIG_GENERIC_PENDING_IRQ is defined. Move the
io_apic_level_ack_pending() to the existing #ifdef
CONFIG_GENERIC_PENDING_IRQ code block.

This will remove the following warning message during compiling
without CONFIG_GENERIC_PENDING_IRQ defined:

 * arch/x86/kernel/apic/io_apic.c:382: warning: ‘io_apic_level_ack_pending’ defined but not used

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Link: http://lkml.kernel.org/r/1336461860.2296.3.camel@sbsiddha-mobl2
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Márton Németh 2012-05-08 00:24:20 -07:00 committed by Ingo Molnar
parent 9438ef7f4e
commit d1ecad6eee
1 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
arch/x86/kernel/apic/io_apic.c
View File

@ -346,29 +346,6 @@ void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val
writel(value, &io_apic->data);
}
static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
{
struct irq_pin_list *entry;
unsigned long flags;
raw_spin_lock_irqsave(&ioapic_lock, flags);
for_each_irq_pin(entry, cfg->irq_2_pin) {
unsigned int reg;
int pin;
pin = entry->pin;
reg = io_apic_read(entry->apic, 0x10 + pin*2);
/* Is the remote IRR bit set? */
if (reg & IO_APIC_REDIR_REMOTE_IRR) {
raw_spin_unlock_irqrestore(&ioapic_lock, flags);
return true;
}
}
raw_spin_unlock_irqrestore(&ioapic_lock, flags);
return false;
}
union entry_union {
struct { u32 w1, w2; };
struct IO_APIC_route_entry entry;
@ -2519,6 +2496,29 @@ static void ack_apic_edge(struct irq_data *data)
atomic_t irq_mis_count;
#ifdef CONFIG_GENERIC_PENDING_IRQ
static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
{
struct irq_pin_list *entry;
unsigned long flags;
raw_spin_lock_irqsave(&ioapic_lock, flags);
for_each_irq_pin(entry, cfg->irq_2_pin) {
unsigned int reg;
int pin;
pin = entry->pin;
reg = io_apic_read(entry->apic, 0x10 + pin*2);
/* Is the remote IRR bit set? */
if (reg & IO_APIC_REDIR_REMOTE_IRR) {
raw_spin_unlock_irqrestore(&ioapic_lock, flags);
return true;
}
}
raw_spin_unlock_irqrestore(&ioapic_lock, flags);
return false;
}
static inline bool ioapic_irqd_mask(struct irq_data *data, struct irq_cfg *cfg)
{
/* If we are moving the irq we need to mask it */