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    • Linus Torvalds's avatar
      Merge branch 'for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · cc863973
      Linus Torvalds authored 
      Pull parisc fixes from Helge Deller:
 "This patcheset includes fixes for:

   - the PCI/LBA which brings back the stifb graphics framebuffer
     console
   - possible memory overflows in parisc kernel init code
   - parport support on older GSC machines
   - avoids that users by mistake enable PARPORT_PC_SUPERIO on parisc
   - MAINTAINERS file list updates for parisc."

* 'for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: parport0: fix this legacy no-device port driver!
  parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
  parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2)
  parisc/PCI: Set type for LBA bus_num resource
  MAINTAINERS: update parisc architecture file list
  parisc: kernel: using strlcpy() instead of strcpy()
  parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
  parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
  parisc: memory overflow, 'name' length is too short for using
      cc863973
    • Helge Deller's avatar
      parisc: parport0: fix this legacy no-device port driver! · 4edb3869
      Helge Deller authored 
      Fix the above kernel error from parport_announce_port() on 32bit GSC
machines (e.g. B160L). The parport driver requires now a pointer to the
device struct.
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      4edb3869
    • Helge Deller's avatar
      parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture · c218c713
      Helge Deller authored 
      If enabled, CONFIG_PARPORT_PC_SUPERIO scans on PC-like hardware for
various super-io chips by accessing i/o ports in a range which will
crash any parisc hardware at once.

In addition, parisc has it's own incompatible superio chip
(CONFIG_SUPERIO), so if we disable PARPORT_PC_SUPERIO completely for
parisc we can avoid that people by accident enable the parport_pc
superio option too.
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      c218c713
    • Helge Deller's avatar
      parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2) · b204a4d2
      Helge Deller authored 
      commit dc7dce28
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Fri Oct 28 16:27:27 2011 -0600
   parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
                    resources

  Supply root bus resources to pci_create_root_bus() so they're correct
  immediately.  This fixes the problem of "early" and "header" quirks seeing
  incorrect root bus resources.

added tests for elmmio_space.start while it should use
elmmio_space.flags.  This for example led to incorrect resource
assignments and a non-working stifb framebuffer on most parisc machines.

LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      b204a4d2
    • Bjorn Helgaas's avatar
      parisc/PCI: Set type for LBA bus_num resource · b47d4934
      Bjorn Helgaas authored 
      The non-PAT resource probing code failed to set the type of the LBA bus_num
resource (30aa80da "parisc/PCI: register busn_res for root buses" did
the corresponding thing for the PAT case).

This causes incorrect resource assignments and a non-working stifb
framebuffer on most parisc machines.
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      b47d4934
    • Helge Deller's avatar
      MAINTAINERS: update parisc architecture file list · 2b6bac9e
      Helge Deller authored 
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      2b6bac9e
    • Chen Gang's avatar
      parisc: kernel: using strlcpy() instead of strcpy() · ea99b1ad
      Chen Gang authored 
      'boot_args' is an input args, and 'boot_command_line' has a fix length.
So use strlcpy() instead of strcpy() to avoid memory overflow.
Signed-off-by: default avatarChen Gang <gang.chen@asianux.com>
Acked-by: default avatarKyle McMartin <kyle@mcmartin.ca>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      ea99b1ad
    • Paul Bolle's avatar
      parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000" · 76603902
      Paul Bolle authored 
      There's a Makefile line setting cflags for CONFIG_PA7100. But that
Kconfig macro doesn't exist. There is a Kconfig symbol PA7000, which
covers both PA7000 and PA7100 processors. So let's use the corresponding
Kconfig macro.
Signed-off-by: default avatarPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      76603902
    • Helge Deller's avatar
      parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 · ae249b5f
      Helge Deller authored 
      With CONFIG_DISCONTIGMEM=y and multiple physical memory areas,
cat /proc/kpageflags triggers this kernel bug:

kernel BUG at arch/parisc/include/asm/mmzone.h:50!
CPU: 2 PID: 7848 Comm: cat Tainted: G      D W 3.10.0-rc3-64bit #44
 IAOQ[0]: kpageflags_read0x128/0x238
 IAOQ[1]: kpageflags_read0x12c/0x238
 RP(r2): proc_reg_read0xbc/0x130
Backtrace:
 [<00000000402ca2d4>] proc_reg_read0xbc/0x130
 [<0000000040235bcc>] vfs_read0xc4/0x1d0
 [<0000000040235f0c>] SyS_read0x94/0xf0
 [<0000000040105fc0>] syscall_exit0x0/0x14

kpageflags_read() walks through the whole memory, even if some memory
areas are physically not available. So, we should better not BUG on an
unavailable pfn in pfn_to_nid() but just return the expected value -1 or
0.
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      ae249b5f
    • Chen Gang's avatar
      parisc: memory overflow, 'name' length is too short for using · 3f108de9
      Chen Gang authored 
      'path.bc[i]' can be asigned by PCI_SLOT() which can '> 10', so sizeof(6
* "%u:" + "%u" + '\0') may be 21.

Since 'name' length is 20, it may be memory overflow.

And 'path.bc[i]' is 'unsigned char' for printing, we can be sure the
max length of 'name' must be less than 28.

So simplify thinking, we can use 28 instead of 20 directly, and do not
think of whether 'patchc.bc[i]' can '> 100'.
Signed-off-by: default avatarChen Gang <gang.chen@asianux.com>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      3f108de9
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