From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- include/trace/events/notifier.h | 69 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 include/trace/events/notifier.h (limited to 'include/trace/events/notifier.h') diff --git a/include/trace/events/notifier.h b/include/trace/events/notifier.h new file mode 100644 index 000000000..26b298a31 --- /dev/null +++ b/include/trace/events/notifier.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM notifier + +#if !defined(_TRACE_NOTIFIERS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_NOTIFIERS_H + +#include + +DECLARE_EVENT_CLASS(notifier_info, + + TP_PROTO(void *cb), + + TP_ARGS(cb), + + TP_STRUCT__entry( + __field(void *, cb) + ), + + TP_fast_assign( + __entry->cb = cb; + ), + + TP_printk("%ps", __entry->cb) +); + +/* + * notifier_register - called upon notifier callback registration + * + * @cb: callback pointer + * + */ +DEFINE_EVENT(notifier_info, notifier_register, + + TP_PROTO(void *cb), + + TP_ARGS(cb) +); + +/* + * notifier_unregister - called upon notifier callback unregistration + * + * @cb: callback pointer + * + */ +DEFINE_EVENT(notifier_info, notifier_unregister, + + TP_PROTO(void *cb), + + TP_ARGS(cb) +); + +/* + * notifier_run - called upon notifier callback execution + * + * @cb: callback pointer + * + */ +DEFINE_EVENT(notifier_info, notifier_run, + + TP_PROTO(void *cb), + + TP_ARGS(cb) +); + +#endif /* _TRACE_NOTIFIERS_H */ + +/* This part must be outside protection */ +#include -- cgit v1.3.1