Andrew Morton
57d4810ea0
revert "x86, serial: convert legacy COM ports to platform devices"
...
Revert 7e92b4fc34 . It broke Sébastien Dugué's
machine and Jeff said (persuasively)
This seems like it will break decades-long-working stuff, in favor of
breaking new ground in our favorite area, "trusting the BIOS."
It's just not worth it for serial ports, IMO. Serial ports are something
that just shouldn't break at this late stage in the game. My new Intel
platform boxes don't even have serial ports, so I question the value of
messing with serial port probing even more... because... just wait a year,
and your box won't have a serial port either! :)
I certainly don't object to the use of platform devices (or isa_driver),
but the probe change seems questionable. That's sorta analagous to
rewriting the floppy driver probe routine. Sure you could do it... but why
risk all that damage and go through debugging all over again?
It seems clear from this report that we cannot, should not, trust BIOS for
something (a) so simple and (b) that has been working for over a decade.
Much discussion ensued and we've decided to have another go at all of this.
Cc: Sébastien Dugué <sebastien.dugue@bull.net>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:38 -07:00
..
mach-bigsmp
[PATCH] x86: default to physical mode on hotplug CPU kernels
2007-05-02 19:27:04 +02:00
mach-default
i386: move PIT function declarations and constants to correct header file
2007-07-21 18:37:14 -07:00
mach-es7000
i386: es7000 build breakage fix
2007-07-06 10:23:43 -07:00
mach-generic
[PATCH] x86: default to physical mode on hotplug CPU kernels
2007-05-02 19:27:04 +02:00
mach-numaq
[PATCH] x86: default to physical mode on hotplug CPU kernels
2007-05-02 19:27:04 +02:00
mach-summit
[PATCH] x86: Log reason why TSC was marked unstable
2007-05-02 19:27:08 +02:00
mach-visws
[PATCH] x86: default to physical mode on hotplug CPU kernels
2007-05-02 19:27:04 +02:00
mach-voyager
i386: remove pit_interrupt_hook
2007-07-21 18:37:08 -07:00
xen
xen: add the Xenbus sysfs and virtual device hotplug driver
2007-07-18 08:47:45 -07:00
8253pit.h
a.out.h
arch: personality independent stack top
2007-07-19 10:04:45 -07:00
acpi.h
ACPI: Kconfig: remove CONFIG_ACPI_SLEEP from source
2007-07-25 01:29:39 -04:00
agp.h
[AGPGART] Move [un]map_page_into_agp into asm/agp.h
2007-04-26 14:22:50 -04:00
alternative-asm.i
Remove all inclusions of <linux/config.h>
2006-10-04 03:38:54 -04:00
alternative.h
x86: Fix alternatives and kprobes to remap write-protected kernel text
2007-07-22 11:03:37 -07:00
apic.h
[PATCH] i386: safe_apic_wait_icr_idle - i386
2007-05-02 19:27:17 +02:00
apicdef.h
x86_64: Remove stale lapic definition from apicdef.h
2006-04-01 22:50:03 -05:00
arch_hooks.h
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
2006-10-05 15:10:12 +01:00
atomic.h
i386: fix early usage of atomic_add_return and local_add_return on real i386
2007-05-23 20:14:15 -07:00
auxvec.h
bitops.h
Fix misspellings collected by members of KJ list.
2007-05-09 07:14:03 +02:00
boot.h
include/asm-i386/boot.h: This is <asm/boot.h>, not <linux/boot.h>
2007-07-12 10:55:54 -07:00
bootparam.h
[x86 setup] Make struct ist_info cross-architecture, and use in setup code
2007-07-25 12:02:21 -07:00
bug.h
[PATCH] Generic BUG for i386
2006-12-08 08:28:39 -08:00
bugs.h
[PATCH] x86: update for i386 and x86-64 check_bugs
2007-05-02 19:27:16 +02:00
byteorder.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
cache.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
cacheflush.h
[PATCH] Optimize D-cache alias handling on fork
2006-12-13 09:27:08 -08:00
checksum.h
[NET]: I386 checksum annotations and cleanups.
2006-12-02 21:23:19 -08:00
cmpxchg.h
i386: Use patchable lock prefix in set_64bit
2007-07-22 11:03:38 -07:00
cpu.h
[PATCH] i386: introduce the mechanism of disabling cpu hotplug control
2006-12-07 02:14:10 +01:00
cpufeature.h
Use a new CPU feature word to cover features that are spread around
2007-07-12 10:55:54 -07:00
cputime.h
current.h
[PATCH] i386: Convert PDA into the percpu section
2007-05-02 19:27:16 +02:00
debugreg.h
delay.h
[PATCH] vmi: paravirt drop udelay op
2007-03-05 07:57:52 -08:00
desc.h
[PATCH] i386: Page-align the GDT
2007-05-02 19:27:15 +02:00
device.h
ACPI: Change ACPI to use dev_archdata instead of firmware_data
2006-12-01 14:52:01 -08:00
div64.h
[NET]: div64_64 consolidate (rev3)
2007-04-25 22:23:33 -07:00
dma-mapping.h
x86: Disable DAC on VIA bridges
2007-06-20 14:27:25 -07:00
dma.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
dmi.h
[PATCH] x86_64: Implement early DMI scanning
2006-03-25 09:10:55 -08:00
dwarf2.h
[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
2006-09-26 10:52:41 +02:00
e820.h
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION
2007-07-29 16:45:38 -07:00
edac.h
elf.h
i386: sched.h inclusion from module.h is baack
2007-05-08 11:15:08 -07:00
emergency-restart.h
errno.h
fb.h
fbdev: detect primary display device
2007-07-17 10:23:11 -07:00
fcntl.h
fixmap.h
serial: convert early_uart to earlycon for 8250
2007-07-16 09:05:35 -07:00
floppy.h
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
2006-10-05 15:10:12 +01:00
frame.i
Remove all inclusions of <linux/config.h>
2006-10-04 03:38:54 -04:00
futex.h
[PATCH] mm: pagefault_{disable,enable}()
2006-12-07 08:39:21 -08:00
genapic.h
[PATCH] x86: default to physical mode on hotplug CPU kernels
2007-05-02 19:27:04 +02:00
geode.h
i386: basic infrastructure support for AMD geode-class machines
2007-07-21 18:37:14 -07:00
hardirq.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
highmem.h
[PATCH] i386: PARAVIRT: add kmap_atomic_pte for mapping highpte pages
2007-05-02 19:27:15 +02:00
hpet.h
x86: share hpet.h with i386
2007-07-21 18:37:09 -07:00
hw_irq.h
[PATCH] i386/x86_64: Remove global IO_APIC_VECTOR
2006-10-08 12:24:02 -07:00
hypertransport.h
[PATCH] Initial generic hypertransport interrupt support
2006-10-04 07:55:29 -07:00
i387.h
[PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
2007-05-02 19:27:21 +02:00
i8253.h
i386: move PIT function declarations and constants to correct header file
2007-07-21 18:37:14 -07:00
i8259.h
ide.h
fix jvc cdrom drive lockup
2007-07-16 09:05:40 -07:00
intel_arch_perfmon.h
[PATCH] x86: i386/x86-64 Add nmi watchdog support for new Intel CPUs
2006-09-26 10:52:27 +02:00
io.h
serial: convert early_uart to earlycon for 8250
2007-07-16 09:05:35 -07:00
io_apic.h
[PATCH] io_apic.h needs apicdef.h
2007-03-05 07:57:50 -08:00
ioctl.h
ioctls.h
tty: i386/x86_64 arbitary speed support
2007-05-08 11:15:03 -07:00
ipc.h
ipcbuf.h
irq.h
xen: Core Xen implementation
2007-07-18 08:47:42 -07:00
irq_regs.h
[PATCH] i386: Convert PDA into the percpu section
2007-05-02 19:27:16 +02:00
irqflags.h
[PATCH] i386: Use X86_EFLAGS_IF in irqflags.h.
2007-05-02 19:27:10 +02:00
ist.h
[x86 setup] Make struct ist_info cross-architecture, and use in setup code
2007-07-25 12:02:21 -07:00
k8.h
[PATCH] x86_64: Clean and enhance up K8 northbridge access code
2006-06-26 10:48:15 -07:00
Kbuild
[PATCH] x86: Clean up x86 control register and MSR macros (corrected)
2007-05-02 19:27:12 +02:00
kdebug.h
Revert "ipmi: add new IPMI nmi watchdog handling"
2007-05-14 15:24:24 -07:00
kexec.h
kdump/kexec: calculate note size at compile time
2007-05-08 11:15:07 -07:00
kmap_types.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
kprobes.h
jprobes: remove JPROBE_ENTRY()
2007-07-19 10:04:44 -07:00
ldt.h
linkage.h
local.h
i386: fix early usage of atomic_add_return and local_add_return on real i386
2007-05-23 20:14:15 -07:00
math_emu.h
[PATCH] i386: PDA: Fix math emulator for new pt_regs
2006-12-07 02:14:03 +01:00
mc146818rtc.h
i386: add cpu_relax() to cmos_lock()
2007-07-21 18:37:13 -07:00
mca.h
mca_dma.h
[PATCH] kernel-doc for kernel/dma.c
2006-10-03 08:03:41 -07:00
mce.h
x86: Stop MCEs and NMIs during code patching
2007-07-22 11:03:37 -07:00
mman.h
[PATCH] add asm-generic/mman.h
2006-02-15 15:32:22 -08:00
mmu.h
[PATCH] vdso: randomize the i386 vDSO by moving it into a vma
2006-06-27 17:32:38 -07:00
mmu_context.h
paravirt: unstatic leave_mm
2007-07-18 08:47:41 -07:00
mmx.h
mmzone.h
i386 mmzone: use __maybe_unused
2007-05-09 12:30:57 -07:00
module.h
[PATCH] i386: Add an option for the VIA C7 which sets appropriate L1 cache
2007-05-02 19:27:05 +02:00
mpspec.h
[PATCH] clockevents: i386 drivers
2007-02-16 08:13:59 -08:00
mpspec_def.h
[PATCH] x86-64: remove remaining pc98 code
2006-12-07 02:14:19 +01:00
msgbuf.h
msidef.h
[PATCH] genirq: i386 irq: Move msi message composition into io_apic.c
2006-10-04 07:55:28 -07:00
msr-index.h
[PATCH] i386: Enable support for fixed-range IORRs to keep RdMem & WrMem in sync
2007-05-02 19:27:17 +02:00
msr.h
i386: msr.h: be paranoid about types and parentheses
2007-05-09 12:49:33 -07:00
mtrr.h
[PATCH] x86: Save the MTRRs of the BSP before booting an AP
2007-05-02 19:27:17 +02:00
mutex.h
[PATCH] i386: Remove lock section support in mutex.h
2006-09-26 10:52:31 +02:00
namei.h
nmi.h
x86: Stop MCEs and NMIs during code patching
2007-07-22 11:03:37 -07:00
numa.h
numaq.h
page.h
i386: minor nx handling adjustment
2007-07-21 18:37:09 -07:00
param.h
[PATCH] cleanup asm/setup.h userspace visibility
2006-12-07 08:39:46 -08:00
paravirt.h
Add a sched_clock paravirt_op
2007-07-18 08:47:42 -07:00
parport.h
pci-direct.h
pci.h
x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata
2007-07-21 18:37:14 -07:00
percpu.h
define new percpu interface for shared data
2007-07-19 10:04:44 -07:00
pgalloc.h
paravirt: add an "mm" argument to alloc_pt
2007-07-18 08:47:40 -07:00
pgtable-2level-defs.h
[PATCH] i386: PARAVIRT: Allow paravirt backend to choose kernel PMD sharing
2007-05-02 19:27:13 +02:00
pgtable-2level.h
page table handling cleanup
2007-07-16 09:05:36 -07:00
pgtable-3level-defs.h
[PATCH] i386: PARAVIRT: Allow paravirt backend to choose kernel PMD sharing
2007-05-02 19:27:13 +02:00
pgtable-3level.h
page table handling cleanup
2007-07-16 09:05:36 -07:00
pgtable.h
mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty
2007-07-17 10:22:59 -07:00
poll.h
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
posix_types.h
i386: improve and correct inline asm memory constraints
2006-07-08 15:24:18 -07:00
processor-cyrix.h
x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.
2007-07-22 11:03:38 -07:00
processor-flags.h
[PATCH] x86: Clean up x86 control register and MSR macros (corrected)
2007-05-02 19:27:12 +02:00
processor.h
x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.
2007-07-22 11:03:38 -07:00
ptrace-abi.h
[PATCH] Split i386 and x86_64 ptrace.h
2006-09-26 08:49:10 -07:00
ptrace.h
[PATCH] i386: Profile pc badness
2007-02-13 13:26:21 +01:00
reboot.h
[PATCH] i386: Add machine_ops interface to abstract halting and rebooting
2007-05-02 19:27:11 +02:00
reboot_fixups.h
[PATCH] i386: clean up mach_reboot_fixups
2007-05-02 19:27:06 +02:00
required-features.h
i386: Allow KVM on i386 nonpae
2007-07-19 14:37:05 -07:00
resource.h
resume-trace.h
x86: PM_TRACE support
2007-07-21 18:37:10 -07:00
rtc.h
rwlock.h
[PATCH] i386: Clean up spin/rwlocks
2006-09-26 10:52:32 +02:00
rwsem.h
[PATCH] lockdep: name some old style locks
2006-12-07 08:39:36 -08:00
scatterlist.h
PCI: scatterlist.h needs types.h
2007-05-02 19:02:34 -07:00
seccomp.h
sections.h
segment.h
[PATCH] i386: Fix UP gdt bugs
2007-05-02 19:27:16 +02:00
semaphore.h
[PATCH] i386: Use early clobbers for semaphores now
2006-09-27 14:39:51 -07:00
sembuf.h
serial.h
revert "x86, serial: convert legacy COM ports to platform devices"
2007-07-31 15:39:38 -07:00
setup.h
paravirt: add a hook for once the allocator is ready
2007-07-18 08:47:41 -07:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
[PATCH] headers_check: move inclusion of <linux/linkage.h> in <asm-i386/signal.h>
2006-09-13 07:32:15 -07:00
smp.h
paravirt: make siblingmap functions visible
2007-07-18 08:47:41 -07:00
socket.h
[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support
2007-04-25 22:24:21 -07:00
sockios.h
[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution
2007-04-25 22:24:04 -07:00
sparsemem.h
spinlock.h
[PATCH] paravirt: Patch inline replacements for paravirt intercepts
2006-12-07 02:14:08 +01:00
spinlock_types.h
[PATCH] Remove 'volatile' from spinlock_types
2006-12-06 14:39:53 -08:00
srat.h
stacktrace.h
[PATCH] i386: Do stacktracer conversion too
2006-09-26 10:52:34 +02:00
stat.h
[PATCH] 2TB files: st_blocks is invalid when calling stat64
2006-03-26 08:57:00 -08:00
statfs.h
string.h
i386: Move all simple string operations out of line
2007-07-21 18:37:08 -07:00
suspend.h
ACPI: Kconfig: remove CONFIG_ACPI_SLEEP from source
2007-07-25 01:29:39 -04:00
sync_bitops.h
Fix misspellings collected by members of KJ list.
2007-05-09 07:14:03 +02:00
system.h
[PATCH] sched: sched_cacheflush is now unused
2007-07-19 21:28:35 +02:00
termbits.h
tty: i386/x86_64 arbitary speed support
2007-05-08 11:15:03 -07:00
termios.h
tty: i386/x86_64 arbitary speed support
2007-05-08 11:15:03 -07:00
therm_throt.h
[PATCH] x86: Add a cumulative thermal throttle event counter.
2006-09-26 10:52:42 +02:00
thread_info.h
remove unused TIF_NOTIFY_RESUME flag
2007-07-31 15:39:38 -07:00
time.h
[PATCH] vmi: pit override
2007-03-05 07:57:52 -08:00
timer.h
i386: move PIT function declarations and constants to correct header file
2007-07-21 18:37:14 -07:00
timex.h
[PATCH] Time: i386 Conversion - part 2: Rework TSC Support
2006-06-26 09:58:21 -07:00
tlb.h
tlbflush.h
i386: add reference to the arguments
2007-07-21 18:37:10 -07:00
topology.h
x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata
2007-07-21 18:37:14 -07:00
tsc.h
lguest: the host code
2007-07-19 10:04:52 -07:00
types.h
[PATCH] Centralise definitions of sector_t and blkcnt_t
2006-12-04 19:41:15 -08:00
uaccess.h
i386: replace hard-coded constant with appropriate macro from kernel.h
2007-07-21 18:37:13 -07:00
ucontext.h
unaligned.h
unistd.h
sys_fallocate() implementation on i386, x86_64 and powerpc
2007-07-17 21:42:44 -04:00
unwind.h
Remove stack unwinder for now
2006-12-15 08:47:51 -08:00
user.h
vga.h
[PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use
2006-06-22 15:05:58 -07:00
vic.h
[VOYAGER] fix up ptregs removal mess
2006-10-12 22:25:03 -05:00
vm86.h
[PATCH] i386: Update sys_vm86 to cope with changed pt_regs and %gs usage
2006-12-07 02:14:03 +01:00
vmi.h
[PATCH] vmi: apic ops
2007-03-05 07:57:52 -08:00
vmi_time.h
Add a sched_clock paravirt_op
2007-07-18 08:47:42 -07:00
voyager.h
[VOYAGER] Convert the monitor thread to use the kthread API
2007-05-01 10:09:29 -05:00
xor.h