linux-stable-rt/arch/x86_64
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
..
boot x86_64: Remove outdated comment in boot decompressor Makefile 2007-07-22 11:03:38 -07:00
crypto
ia32 Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
kernel revert "x86, serial: convert legacy COM ports to platform devices" 2007-07-31 15:39:38 -07:00
lib
mm Revert most of "x86: Fix alternatives and kprobes to remap write-protected kernel text" 2007-07-26 12:07:21 -07:00
oprofile
pci x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata 2007-07-21 18:37:14 -07:00
vdso Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
Kconfig [IA64] Fix build failure in fs/quota.c 2007-07-27 15:40:13 -07:00
Kconfig.debug Allow DEBUG_RODATA and KPROBES to co-exist 2007-06-21 16:02:50 -07:00
Makefile x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu 2007-07-21 18:37:08 -07:00
defconfig Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION 2007-07-29 16:45:38 -07:00