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authorIngo Molnar <mingo@kernel.org>2019-12-17 14:28:02 +0300
committerIngo Molnar <mingo@kernel.org>2019-12-17 14:28:02 +0300
commit57e04eeda515ee979fec3bc3d64c408feae18acc (patch)
treef18d4d0885211ee7bd543a2363c035a290037556 /include/linux/interrupt.h
parent0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff)
parent58b3bafff8257c6946df5d6aeb215b8ac839ed2a (diff)
downloadlinux-57e04eeda515ee979fec3bc3d64c408feae18acc.tar.xz
Merge tag 'perf-urgent-for-mingo-5.5-20191216' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes: perf top: Arnaldo Carvalho de Melo: - Do not bail out when perf_env__read_cpuid() returns ENOSYS, which has been reported happening on aarch64. perf metricgroup: Kajol Jain: - Fix printing event names of metric group with multiple events vendor events: x86: Ravi Bangoria: - Fix Kernel_Utilization metric. s390: Ed Maste: - Fix counter long description for DTLB1_GPAGE_WRITES and L1D_RO_EXCL_WRITES. perf header: Michael Petlan: - Fix false warning when there are no duplicate cache entries libtraceevent: Sudip Mukherjee: - Allow custom libdir path API headers: Arnaldo Carvalho de Melo: - Sync linux/kvm.h with the kernel sources. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 89fc59dab57d..c5fe60ec6b84 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -140,6 +140,19 @@ request_threaded_irq(unsigned int irq, irq_handler_t handler,
irq_handler_t thread_fn,
unsigned long flags, const char *name, void *dev);
+/**
+ * request_irq - Add a handler for an interrupt line
+ * @irq: The interrupt line to allocate
+ * @handler: Function to be called when the IRQ occurs.
+ * Primary handler for threaded interrupts
+ * If NULL, the default primary handler is installed
+ * @flags: Handling flags
+ * @name: Name of the device generating this interrupt
+ * @dev: A cookie passed to the handler function
+ *
+ * This call allocates an interrupt and establishes a handler; see
+ * the documentation for request_threaded_irq() for details.
+ */
static inline int __must_check
request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
const char *name, void *dev)
@@ -520,8 +533,7 @@ enum
IRQ_POLL_SOFTIRQ,
TASKLET_SOFTIRQ,
SCHED_SOFTIRQ,
- HRTIMER_SOFTIRQ, /* Unused, but kept as tools rely on the
- numbering. Sigh! */
+ HRTIMER_SOFTIRQ,
RCU_SOFTIRQ, /* Preferable RCU should always be the last softirq */
NR_SOFTIRQS