Skip to content

Commit

Permalink
PnP: move pnpacpi/pnpbios_init to after PCI init
Browse files Browse the repository at this point in the history
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>
  • Loading branch information
Linus Torvalds committed Oct 10, 2008
1 parent 82219fc commit ed458df
Show file tree
Hide file tree
Showing 3 changed files with 6 additions and 3 deletions.
5 changes: 4 additions & 1 deletion drivers/pnp/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,15 @@
# 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_PNPBIOS) += pnpbios/
obj-$(CONFIG_ISAPNP) += isapnp/

# pnp_system_init goes after pnpacpi/pnpbios init
obj-y += system.o

ifeq ($(CONFIG_PNP_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
endif
2 changes: 1 addition & 1 deletion drivers/pnp/pnpacpi/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -268,7 +268,7 @@ static int __init pnpacpi_init(void)
return 0;
}

subsys_initcall(pnpacpi_init);
fs_initcall(pnpacpi_init);

static int __init pnpacpi_setup(char *str)
{
Expand Down
2 changes: 1 addition & 1 deletion drivers/pnp/pnpbios/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -571,7 +571,7 @@ static int __init pnpbios_init(void)
return 0;
}

subsys_initcall(pnpbios_init);
fs_initcall(pnpbios_init);

static int __init pnpbios_thread_init(void)
{
Expand Down

0 comments on commit ed458df

Please sign in to comment.