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  1. 20 9月, 2006 1 次提交
    • M
      [S390] zcrypt adjunct processor bus. · 1534c382
      由 Martin Schwidefsky 提交于 
      Add a bus for the adjunct processor interface. Up to 64 devices can
be connect to the ap bus interface, each device with 16 domains. That
makes 1024 message queues. The interface is asynchronous, the answer
to a message sent to a queue needs to be received at some later point
in time. Unfortunately the interface does not provide interrupts when
a message reply is pending. So the ap bus needs to implement some
fancy polling, each active queue is polled once per 1/HZ second or
continuously if an idle cpus exsists and the poll thread is activ
(see poll_thread parameter).

The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes,
ap_domain and config_time. The ap_domain selects one of the 16 domains
to be used for this system. This limits the maximum number of ap devices
to 64. The config_time attribute contains the number of seconds between
two ap bus scans to find new devices.

The ap bus uses the modalias entries of the form "ap:tN" to autoload
the ap driver for hardware type N. Currently known types are:
3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NRalph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
      1534c382
  3. 17 9月, 2006 2 次提交
  5. 13 9月, 2006 2 次提交
  7. 25 8月, 2006 1 次提交
  9. 16 8月, 2006 1 次提交
    • H
      [PATCH] PATCH: 1 line 2.6.18 bugfix: modpost-64bit-fix.patch · e0e92632
      由 Hans de Goede 提交于 
      There is a small but annoying bug in scripts/mod/file2alias.c which causes
it to generate invalid aliases for input devices on 64 bit archs. This causes
joydev.ko to not be automaticly loaded when inserting a joystick, resulting in
a non working joystick (for the average user).

In scripts/mod/file2alias.c is the following code for generating the input
aliases:
static void do_input(char *alias,
                     kernel_ulong_t *arr, unsigned int min, unsigned int max)
{
        unsigned int i;

        for (i = min; i < max; i++)
                if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG)))
                        sprintf(alias + strlen(alias), "%X,*", i);
}

On 32 bits systems, this correctly generates "0,*" for the first alias, "8,*"
for the second etc.

However on 64 bits it generates: "0,*20,*" resp "8,*28,*" Notice how it adds 20
+ first entry (hex) ! to the list of hex codes, which is 32 more then the first
entry, thus is because the bit test above wraps at 32 bits instead of 64.

scripts/mod/file2alias.c, line 379 reads:
                if (arr[i / BITS_PER_LONG] & (1 << (i%BITS_PER_LONG)))
That should be:
                if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))

Notice the added 'L' after the 1, otherwise that is an 32 bit int instead of a
64 bit long, and when that int gets shifted >= 32 times, appearantly the number
by which to shift is wrapped at 5 bits ( % 32) causing it to test a bit 32 bits
too low.

The patch below makes the nescesarry 1 char change :)
Signed-off-by: NHans de Goede <j.w.r.degoede@hhs.nl>
Acked-by: NRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      e0e92632
  11. 01 8月, 2006 6 次提交
    • S
      kbuild: always use $(CC) for $(call cc-version) · 8eb3afe0
      由 Sam Ravnborg 提交于 
      The possibility to specify an optional parameter did not work out as
expected and it was not used - so remove the possibility.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      8eb3afe0
    • R
      kconfig: correct oldconfig for unset choice options · 002d27b1
      由 Roman Zippel 提交于 
      oldconfig currently ignores unset choice options and doesn't ask for them.
Correct the SYMBOL_DEF_USER flag of the choice symbol to be only set if
it's set for all values.
Signed-off-by: NRoman Zippel <zippel@linux-m68k.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      002d27b1
    • D
      kbuild: fix typo in modpost · 0463f3c7
      由 Dave Jones 提交于 
      Reported by a Fedora user when they tried to build some out of tree module..
Signed-off-by: NDave Jones <davej@redhat.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      0463f3c7
    • S
      kbuild: improve error from file2alias · fb33d816
      由 Sam Ravnborg 提交于 
      The original errormessage was just plain unreadable.

Sample error message after this update (not for real - I provoked it):

FATAL: drivers/net/s2io: sizeof(struct pci_device_id)=33 is not a modulo of the
size of section __mod_pci_device_table=160.
Fix definition of struct pci_device_id in mod_devicetable.h

Before a warning was generated - this is now a fatal error.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      fb33d816
    • R
      [PATCH] vDSO hash-style fix · 0b0bf7a3
      由 Roland McGrath 提交于 
      The latest toolchains can produce a new ELF section in DSOs and
dynamically-linked executables.  The new section ".gnu.hash" replaces
".hash", and allows for more efficient runtime symbol lookups by the
dynamic linker.  The new ld option --hash-style={sysv|gnu|both} controls
whether to produce the old ".hash", the new ".gnu.hash", or both.  In some
new systems such as Fedora Core 6, gcc by default passes --hash-style=gnu
to the linker, so that a standard invocation of "gcc -shared" results in
producing a DSO with only ".gnu.hash".  The new ".gnu.hash" sections need
to be dealt with the same way as ".hash" sections in all respects; only the
dynamic linker cares about their contents.  To work with older dynamic
linkers (i.e.  preexisting releases of glibc), a binary must have the old
".hash" section.  The --hash-style=both option produces binaries that a new
dynamic linker can use more efficiently, but an old dynamic linker can
still handle.

The new section runs afoul of the custom linker scripts used to build vDSO
images for the kernel.  On ia64, the failure mode for this is a boot-time
panic because the vDSO's PT_IA_64_UNWIND segment winds up ill-formed.

This patch addresses the problem in two ways.

First, it mentions ".gnu.hash" in all the linker scripts alongside ".hash".
 This produces correct vDSO images with --hash-style=sysv (or old tools),
with --hash-style=gnu, or with --hash-style=both.

Second, it passes the --hash-style=sysv option when building the vDSO
images, so that ".gnu.hash" is not actually produced.  This is the most
conservative choice for compatibility with any old userland.  There is some
concern that some ancient glibc builds (though not any known old production
system) might choke on --hash-style=both binaries.  The optimizations
provided by the new style of hash section do not really matter for a DSO
with a tiny number of symbols, as the vDSO has.  If someone wants to use
=gnu or =both for their vDSO builds and worry less about that
compatibility, just change the option and the linker script changes will
make any choice work fine.
Signed-off-by: NRoland McGrath <roland@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      0b0bf7a3
    • R
      [PATCH] kernel-doc: ignore __devinit · 0129a057
      由 Randy Dunlap 提交于 
      Ignore __devinit in function definitions so that kernel-doc won't fail on
them.
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      0129a057
  13. 04 7月, 2006 1 次提交
    • S
      kbuild: introduce utsrelease.h · 63104eec
      由 Sam Ravnborg 提交于 
      include/linux/version.h contained both actual KERNEL version
and UTS_RELEASE that contains a subset from git SHA1 for when
kernel was compiled as part of a git repository.
This had the unfortunate side-effect that all files including version.h
would be recompiled when some git changes was made due to changes SHA1.
Split it out so we keep independent parts in separate files.

Also update checkversion.pl script to no longer check for UTS_RELEASE.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      63104eec
  15. 02 7月, 2006 2 次提交
  17. 01 7月, 2006 4 次提交
  19. 28 6月, 2006 2 次提交
  21. 27 6月, 2006 1 次提交
    • L
      Revert "kbuild: fix make -rR breakage" · d38b6968
      由 Linus Torvalds 提交于 
      This reverts commit e5c44fd8.

Thanks to Daniel Ritz and Michal Piotrowski for noticing the problem.

Daniel says:

  "[The] reason is a recent change that made modules always shows as
   module.mod.  it breaks modprobe and probably many scripts..besides
   lsmod looking horrible

   stuff like this in modprobe.conf:
        install pcmcia_core /sbin/modprobe --ignore-install pcmcia_core; /sbin/modprobe pcmcia
   makes modprobe fork/exec endlessly calling itself...until oom
   interrupts it"
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      d38b6968
  23. 26 6月, 2006 7 次提交
  25. 25 6月, 2006 6 次提交
    • S
      kbuild: replace abort() with exit(1) · 6803dc0e
      由 Sam Ravnborg 提交于 
      We have had no use of the coredump file for a long time.
So just exit(1) and avoid coredumping.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      6803dc0e
    • A
      kbuild: support for %.symtypes files · 15fde675
      由 Andreas Gruenbacher 提交于 
      Here is a patch that adds a new -T option to genksyms for generating dumps of
the type definition that makes up the symbol version hashes. This allows to
trace modversion changes back to what caused them. The dump format is the
name of the type defined, followed by its definition (which is almost C):

  s#list_head struct list_head { s#list_head * next , * prev ; }

The s#, u#, e#, and t# prefixes stand for struct, union, enum, and typedef.
The exported symbols do not define types, and thus do not have an x# prefix:

  nfs4_acl_get_whotype int nfs4_acl_get_whotype ( char * , t#u32 )

The symbol type defintion of a single file can be generated with:

  make fs/jbd/journal.symtypes

If KBUILD_SYMTYPES is defined, all the *.symtypes of all object files that
export symbols are generated.

The single *.symtypes files can be combined into a single file after a kernel
build with a script like the following:

for f in $(find -name '*.symtypes' | sort); do
    f=${f#./}
    echo "/* ${f%.symtypes}.o */"
    cat $f
    echo
done \
| sed -e '\:UNKNOWN:d' \
      -e 's:[,;] }:}:g' \
      -e 's:\([[({]\) :\1:g' \
      -e 's: \([])},;]\):\1:g' \
      -e 's: $::' \
      $f \
| awk '
/^.#/   { if (defined[$1] == $0) {
            print $1
            next
          }
          defined[$1] = $0
        }
        { print }
'

When the kernel ABI changes, diffing individual *.symtype files, or the
combined files, against each other will show which symbol changes caused the
ABI changes. This can save a tremendous amount of time.

Dump the types that make up modversions
Signed-off-by: NAndreas Gruenbacher <agruen@suse.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      15fde675
    • T
      kbuild: add option for stripping modules while installing them · ac031f26
      由 Theodore Ts'o 提交于 
      Add option for stripping modules while installing them.

This function adds support for stripping modules while they are being
installed.  CONFIG_DEBUG_KERNEL (which will probably become more
popular as developers use kdump) causes the size of the installed
modules to grow by a factor of 9 or so.

Some kernel package systems solve this problem by stripping the debug
information from /lib/modules after running "make modules_install",
but that may not work for people who are installing directly into
/lib/modules --- root partitions that were sized to handle 16 megs
worth of modules may not be quite so happy with 145 megs of modules,
so the "make modules_install" never succeeds.

This patch allows such users to request modules_install to strip the
modules as they are installed.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      ac031f26
    • A
      kbuild: kill some false positives from modpost · 468d9494
      由 Al Viro 提交于 
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      468d9494
    • R
      kbuild: export-symbol usage report generator · c5e30033
      由 Ram Pai 提交于 
      The following patch provides the ability to generate a report of
	(1) All the exported symbols and their in-kernel-module usage count
	(2) For each module, lists the modules and their exported symbols, on
	                  which it depends.

	the report can be generated by executing:
	perl scripts/export_report

The tool warns if the modules are not build using MODVERSIONING.
Signed-off-by: NRam Pai <linuxram@us.ibm.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      c5e30033
    • S
      kbuild: fix make -rR breakage · e5c44fd8
      由 Sam Ravnborg 提交于 
      make failed to supply the filename when using make -rR and using $(*F)
to get target filename without extension.
This bug was not reproduceable in small scale but using:
$(basename $(notdir $@)) fixes it with same functionality.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      e5c44fd8
  27. 18 6月, 2006 2 次提交
    • D
      Basic implementation of 'make headers_check' · 68475359
      由 David Woodhouse 提交于 
      Based on the 'headers_install' target, this performs a basic sanity check
on the exported headers -- so far only checking that they do not include
any other headers which aren't selected for import, but easily extendable.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
      68475359
    • D
      Basic implementation of 'make headers_install' · 8d730cfb
      由 David Woodhouse 提交于 
      This adds a make target which exports a subset of headers which contain
definitions which are useful for system libraries and tools. It uses the
BSD 'unifdef' tool to remove instances of #ifdef __KERNEL__, and uses
sed to remove markers like __user.

Based on an original implementation by Arnd Bergmann <arnd@arndb.de>
Hacked about by David Woodhouse <dwmw2@infradead.org>
Reviewed and cleaned up by Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
      8d730cfb
  29. 17 6月, 2006 2 次提交