PCI: Add pci_irq_type() to query the allocated interrupt typegrafted

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 <bhelgaas@google.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1]
Inspired-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2]
Reviewed-by: Gary Guo <gary@garyguo.net>
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 <dakr@kernel.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/fs/jffs2/Makefile b/fs/jffs2/Makefile
new file mode 100644
index 000000000..5294969d5
--- /dev/null
+++ b/fs/jffs2/Makefile
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Linux Journalling Flash File System v2 (JFFS2)
+#
+#
+
+obj-$(CONFIG_JFFS2_FS) += jffs2.o
+
+jffs2-y	:= compr.o dir.o file.o ioctl.o nodelist.o malloc.o
+jffs2-y	+= read.o nodemgmt.o readinode.o write.o scan.o gc.o
+jffs2-y	+= symlink.o build.o erase.o background.o fs.o writev.o
+jffs2-y	+= super.o debug.o
+
+jffs2-$(CONFIG_JFFS2_FS_WRITEBUFFER)	+= wbuf.o
+jffs2-$(CONFIG_JFFS2_FS_XATTR)		+= xattr.o xattr_trusted.o xattr_user.o
+jffs2-$(CONFIG_JFFS2_FS_SECURITY)	+= security.o
+jffs2-$(CONFIG_JFFS2_FS_POSIX_ACL)	+= acl.o
+jffs2-$(CONFIG_JFFS2_RUBIN)	+= compr_rubin.o
+jffs2-$(CONFIG_JFFS2_RTIME)	+= compr_rtime.o
+jffs2-$(CONFIG_JFFS2_ZLIB)	+= compr_zlib.o
+jffs2-$(CONFIG_JFFS2_LZO)	+= compr_lzo.o
+jffs2-$(CONFIG_JFFS2_SUMMARY)   += summary.o