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 --- init/do_mounts_initrd.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 init/do_mounts_initrd.c (limited to 'init/do_mounts_initrd.c') diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c new file mode 100644 index 000000000..892e69ab4 --- /dev/null +++ b/init/do_mounts_initrd.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include + +#include "do_mounts.h" + +unsigned long initrd_start, initrd_end; +int initrd_below_start_ok; +static int __initdata mount_initrd = 1; + +phys_addr_t phys_initrd_start __initdata; +unsigned long phys_initrd_size __initdata; + +static int __init no_initrd(char *str) +{ + pr_warn("noinitrd option is deprecated and will be removed soon\n"); + mount_initrd = 0; + return 1; +} + +__setup("noinitrd", no_initrd); + +static int __init early_initrdmem(char *p) +{ + phys_addr_t start; + unsigned long size; + char *endp; + + start = memparse(p, &endp); + if (*endp == ',') { + size = memparse(endp + 1, NULL); + + phys_initrd_start = start; + phys_initrd_size = size; + } + return 0; +} +early_param("initrdmem", early_initrdmem); + +static int __init early_initrd(char *p) +{ + return early_initrdmem(p); +} +early_param("initrd", early_initrd); + +void __init initrd_load(void) +{ + if (mount_initrd) { + create_dev("/dev/ram", Root_RAM0); + /* + * Load the initrd data into /dev/ram0. + */ + if (rd_load_image()) { + pr_warn("using deprecated initrd support, will be removed in January 2027; " + "use initramfs instead or (as a last resort) /sys/firmware/initrd; " + "see section \"Workaround\" in " + "https://lore.kernel.org/lkml/20251010094047.3111495-1-safinaskar@gmail.com\n"); + } + } + init_unlink("/initrd.image"); +} -- cgit v1.3.1