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PnP: move pnpacpi/pnpbios_init to after PCI init 

We already did that a long time ago for pnp_system_init, but
pnpacpi_init and pnpbios_init remained as subsys_initcalls, and get
linked into the kernel before the arch-specific routines that finalize
the PCI resources (pci_subsys_init).

This means that the PnP routines would either register their resources
before the PCI layer could, or would be unable to check whether a PCI
resource had already been registered.  Both are problematic.

I wanted to do this before 2.6.27, but every time we change something
like this, something breaks.  That said, _every_ single time we trust
some firmware (like PnP tables) more than we trust the hardware itself
(like PCI probing), the problems have been worse.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2008-10-10 08:00:17 -07:00
parent 82219fceeb
commit ed458df4d2
3 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/pnp/Makefile
View File

@ -2,12 +2,15 @@
# Makefile for the Linux Plug-and-Play Support. # Makefile for the Linux Plug-and-Play Support.
# #
obj-y := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o system.o obj-y := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o
obj-$(CONFIG_PNPACPI) += pnpacpi/ obj-$(CONFIG_PNPACPI) += pnpacpi/
obj-$(CONFIG_PNPBIOS) += pnpbios/ obj-$(CONFIG_PNPBIOS) += pnpbios/
obj-$(CONFIG_ISAPNP) += isapnp/ obj-$(CONFIG_ISAPNP) += isapnp/
# pnp_system_init goes after pnpacpi/pnpbios init
obj-y += system.o
ifeq ($(CONFIG_PNP_DEBUG),y) ifeq ($(CONFIG_PNP_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG EXTRA_CFLAGS += -DDEBUG
endif endif

2
drivers/pnp/pnpacpi/core.c
View File

@ -268,7 +268,7 @@ static int __init pnpacpi_init(void)
return 0; return 0;
} }
subsys_initcall(pnpacpi_init); fs_initcall(pnpacpi_init);
static int __init pnpacpi_setup(char *str) static int __init pnpacpi_setup(char *str)
{ {

2
drivers/pnp/pnpbios/core.c
View File

@ -571,7 +571,7 @@ static int __init pnpbios_init(void)
return 0; return 0;
} }
subsys_initcall(pnpbios_init); fs_initcall(pnpbios_init);
static int __init pnpbios_thread_init(void) static int __init pnpbios_thread_init(void)
{ {