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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2016-06-02 14:57:17 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-13 15:58:24 +0200 |
| commit | bb98f396f14477480273a92a75da448af6a9ae85 (patch) | |
| tree | f92e172499b0fdb4ab849d02b20d0b2282b3bd2a /arch/s390/kernel/irq.c | |
| parent | s390/Documentation: improve sort command for trace buffer (diff) | |
| download | linux-bb98f396f14477480273a92a75da448af6a9ae85.tar.xz linux-bb98f396f14477480273a92a75da448af6a9ae85.zip | |
s390: use SPARSE_IRQ
Use dynamically allocated irq descriptors on s390 which allows
us to get rid of the s390 specific config option PCI_NR_MSI and
exploit more MSI interrupts. Also the size of the kernel image
is reduced by 131K (using performance_defconfig).
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/irq.c')
| -rw-r--r-- | arch/s390/kernel/irq.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index c373a1d41d10..285d6561076d 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -127,9 +127,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); } - if (index < NR_IRQS) { - if (index >= NR_IRQS_BASE) - goto out; + if (index < NR_IRQS_BASE) { seq_printf(p, "%s: ", irqclass_main_desc[index].name); irq = irqclass_main_desc[index].irq; for_each_online_cpu(cpu) @@ -137,6 +135,9 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); goto out; } + if (index > NR_IRQS_BASE) + goto out; + for (index = 0; index < NR_ARCH_IRQS; index++) { seq_printf(p, "%s: ", irqclass_sub_desc[index].name); irq = irqclass_sub_desc[index].irq; |