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[POWERPC] mpic: Make sparse happy 

I was running sparse on something else and noticed sparse warnings
and especially the bogus code that is fixed by the first hunk of
this patch, so I fixed them all while at it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
hifive-unleashed-5.1
Johannes Berg 2008-02-21 20:39:01 +11:00 committed by Paul Mackerras
parent 4217c7b529
commit d9d1063d47
1 changed files with 18 additions and 14 deletions
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32
arch/powerpc/sysdev/mpic.c
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@ -175,13 +175,16 @@ static inline void _mpic_write(enum mpic_reg_type type,
switch(type) {
#ifdef CONFIG_PPC_DCR
case mpic_access_dcr:
return dcr_write(rb->dhost, reg, value);
dcr_write(rb->dhost, reg, value);
break;
#endif
case mpic_access_mmio_be:
return out_be32(rb->base + (reg >> 2), value);
out_be32(rb->base + (reg >> 2), value);
break;
case mpic_access_mmio_le:
default:
return out_le32(rb->base + (reg >> 2), value);
out_le32(rb->base + (reg >> 2), value);
break;
}
}
@ -1000,7 +1003,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
const char *name)
{
struct mpic *mpic;
u32 reg;
u32 greg_feature;
const char *vers;
int i;
int intvec_top;
@ -1064,7 +1067,8 @@ struct mpic * __init mpic_alloc(struct device_node *node,
/* Look for protected sources */
if (node) {
unsigned int psize, bits, mapsize;
int psize;
unsigned int bits, mapsize;
const u32 *psrc =
of_get_property(node, "protected-sources", &psize);
if (psrc) {
@ -1107,8 +1111,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
* in, try to obtain one
*/
if (paddr == 0 && !(mpic->flags & MPIC_USES_DCR)) {
const u32 *reg;
reg = of_get_property(node, "reg", NULL);
const u32 *reg = of_get_property(node, "reg", NULL);
BUG_ON(reg == NULL);
paddr = of_translate_address(node, reg);
BUG_ON(paddr == OF_BAD_ADDR);
@ -1137,12 +1140,13 @@ struct mpic * __init mpic_alloc(struct device_node *node,
* MPICs, num sources as well. On ISU MPICs, sources are counted
* as ISUs are added
*/
reg = mpic_read(mpic->gregs, MPIC_INFO(GREG_FEATURE_0));
mpic->num_cpus = ((reg & MPIC_GREG_FEATURE_LAST_CPU_MASK)
greg_feature = mpic_read(mpic->gregs, MPIC_INFO(GREG_FEATURE_0));
mpic->num_cpus = ((greg_feature & MPIC_GREG_FEATURE_LAST_CPU_MASK)
>> MPIC_GREG_FEATURE_LAST_CPU_SHIFT) + 1;
if (isu_size == 0)
mpic->num_sources = ((reg & MPIC_GREG_FEATURE_LAST_SRC_MASK)
>> MPIC_GREG_FEATURE_LAST_SRC_SHIFT) + 1;
mpic->num_sources =
((greg_feature & MPIC_GREG_FEATURE_LAST_SRC_MASK)
>> MPIC_GREG_FEATURE_LAST_SRC_SHIFT) + 1;
/* Map the per-CPU registers */
for (i = 0; i < mpic->num_cpus; i++) {
@ -1161,7 +1165,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
mpic->isu_mask = (1 << mpic->isu_shift) - 1;
/* Display version */
switch (reg & MPIC_GREG_FEATURE_VERSION_MASK) {
switch (greg_feature & MPIC_GREG_FEATURE_VERSION_MASK) {
case 1:
vers = "1.0";
break;
@ -1321,7 +1325,7 @@ void __init mpic_set_serial_int(struct mpic *mpic, int enable)
void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
{
int is_ipi;
unsigned int is_ipi;
struct mpic *mpic = mpic_find(irq, &is_ipi);
unsigned int src = mpic_irq_to_hw(irq);
unsigned long flags;
@ -1344,7 +1348,7 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
unsigned int mpic_irq_get_priority(unsigned int irq)
{
int is_ipi;
unsigned int is_ipi;
struct mpic *mpic = mpic_find(irq, &is_ipi);
unsigned int src = mpic_irq_to_hw(irq);
unsigned long flags;