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2008-04-26ide: manage resources for PCI devices in ide_pci_enable() (take 3)Bartlomiej Zolnierkiewicz
* Reserve PCI BARs 0-3 (0-1 for single port controllers) in ide_pci_enable() and remove ide_hwif_request_regions() call from ide_device_add_all() (also cleanup resource management in scc_pata host driver). * Fix handling of PCI BAR 4 in ide_pci_enable(), then cleanup ide_iomio_dma() (+ init_hwif_trm290() in trm290 host driver) and remove ide_release[_iomio]_dma(). v2: * Fixup trm290 host driver. v3: * Because of scc_pata host driver changes we need to call pci_request_selected_regions() also in setup_mmio_scc(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26cmd640: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: manage I/O resources in ide_legacy_init_one()Bartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Set ->name field of 'struct ide_port_info' instances in legacy VLB host drivers and use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add ide_legacy_init_one() helperBartlomiej Zolnierkiewicz
Move the common code for primary/seconary port setup from ide_legacy_device_add() to ide_legacy_init_one(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide_arm: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-4drives: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. * Remove no longer needed 'hwif->chipset == ide_4drives' handling from ide_device_add_all(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-generic: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ide_hwif_release_regions()Bartlomiej Zolnierkiewicz
All host drivers using ide_unregister()/module_exit() have been fixed to manage resources themselves so this function can be removed now. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: register ports with non-present devices (for warm-plug)Bartlomiej Zolnierkiewicz
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cs: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Make idecs_register() return pointer to hwif structure instead of hwif's index. * Store pointer to hwif structure instead of hwif's index in ide_info_t (fixes ide-cs for IDE[6-9]_MAJOR major numbers). * Remove no longer needed ide_major[]. * Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-pnp: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26qd65xx: cleanup qd_probe()Bartlomiej Zolnierkiewicz
* Replace 'if ()'-s by 'switch ()' block. * Merge common code for QD6500/QD6580A/QD6580B. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: use ide_legacy_device_add() for qd65xx (take 2)Bartlomiej Zolnierkiewicz
* Add 'unsigned long config' argument to ide_legacy_device_add() for setting hwif->config_data. * Use ide_find_port_slot() instead of ide_find_port() in ide_legacy_device_add(). * Handle IDE_HFLAG_QD_2ND_PORT and IDE_HFLAG_SINGLE host flags in ide_legacy_device_add(). * Convert qd65xx host driver to use ide_legacy_device_add(). v2: * Update ali14xx, dtc2278, ht6560b and umc8672 host drivers. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add ide_legacy_device_add() helperBartlomiej Zolnierkiewicz
Add ide_legacy_device_add() helper for use by legacy VLB host drivers (+ convert them to use it). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ->noprobe field from ide_hwif_tBartlomiej Zolnierkiewicz
Update IDE PMAC host driver to use drive->noprobe instead of hwif->noprobe and remove hwif->noprobe completely (it is always set to zero now). There should be no functional changes caused by this patch. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cd: fix remaining checkpatch.pl issuesBorislav Petkov
Some of them are: WARNING: braces {} are not necessary for single statement blocks CHECK: multiple assignments should be avoided WARNING: printk() should include KERN_ facility level WARNING: no space between function name and open parenthesis '(' [bart: minor fixups] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cd: shorten lines longer than 80 columnsBorislav Petkov
[bart: minor fixups] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cd: fixup commentsBorislav Petkov
[bart: minor fixups, md5sum checked] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cd: put all proc-related code at one placeBorislav Petkov
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide-cd: include proper headersBorislav Petkov
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_port_ops (take 2)Bartlomiej Zolnierkiewicz
* Move hooks for port/host specific methods from ide_hwif_t to 'struct ide_port_ops'. * Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info' and ide_hwif_t. * Update host drivers and core code accordingly. While at it: * Rename ata66_*() cable detect functions to *_cable_detect() to match the standard naming. (Suggested by Sergei Shtylyov) v2: * Fix build for bast-ide. (Noticed by Andrew Morton) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26x86, boot: Document for linked list of struct setup_dataHuang, Ying
Documentation for linked list of struct setup_data. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86, boot: export linked list of struct setup_data via debugfsHuang, Ying
Export linked list of struct setup_data via debugfs. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86, boot: add linked list of struct setup_dataHuang, Ying
This patch adds a field of 64-bit physical pointer to NULL terminated single linked list of struct setup_data to real-mode kernel header. This is used as a more extensible boot parameters passing mechanism. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86, boot: add free_early to early reservation machanismHuang, Ying
Add free_early to early reservation mechanism - this way early bootup failure paths can stop wasting memory. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26x86, PAT: disable /dev/mem mmap RAM with PATVenki Pallipadi
disable /dev/mem mmap of RAM with PAT. It makes things safer and eliminates aliasing. A future improvement would be to avoid the range_is_allowed duplication. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26kbuild: scripts/Makefile.modpost typo fixAdrian Bunk
-EVIUSER ;-) Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-26kbuild: soften MODULE_LICENSE checkSam Ravnborg
Only modules that has other MODULE_* content shall have the MODULE_LICENSE() tag. This fixes allmodconfig build on my box. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-26x86, bitops: select the generic bitmap search functionsAlexander van Heukelum
Introduce GENERIC_FIND_FIRST_BIT and GENERIC_FIND_NEXT_BIT in lib/Kconfig, defaulting to off. An arch that wants to use the generic implementation now only has to use a select statement to include them. I added an always-y option (X86_CPU) to arch/x86/Kconfig.cpu and used that to select the generic search functions. This way ARCH=um SUBARCH=i386 automatically picks up the change too, and arch/um/Kconfig.i386 can therefore be simplified a bit. ARCH=um SUBARCH=x86_64 does things differently, but still compiles fine. It seems that a "def_bool y" always wins over a "def_bool n"? Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: include/asm-x86/pgalloc.h/bitops.h: checkpatch cleanups - formatting onlyJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: finalize bitops unificationAlexander van Heukelum
include/asm-x86/bitops_32.h and include/asm-x86/bitops_64.h are now almost identical. The 64-bit version sets ARCH_HAS_FAST_MULTIPLIER and has an extra inline function set_bit_string. The define currently has no influence on the generated code, but it can be argued that setting it on i386 is the right thing to do anyhow. The addition of the extra inline function on i386 does not hurt either. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86, UML: remove x86-specific implementations of find_first_bitAlexander van Heukelum
x86 has been switched to the generic versions of find_first_bit and find_first_zero_bit, but the original versions were retained. This patch just removes the now unused x86-specific versions. also update UML. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: optimize find_first_bit for small bitmapsAlexander van Heukelum
Avoid a call to find_first_bit if the bitmap size is know at compile time and small enough to fit in a single long integer. Modeled after an optimization in the original x86_64-specific code. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: switch 64-bit to generic find_first_bitAlexander van Heukelum
Switch x86_64 to generic find_first_bit. The x86_64-specific implementation is not removed. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: generic versions of find_first_(zero_)bit, convert i386Alexander van Heukelum
Generic versions of __find_first_bit and __find_first_zero_bit are introduced as simplified versions of __find_next_bit and __find_next_zero_bit. Their compilation and use are guarded by a new config variable GENERIC_FIND_FIRST_BIT. The generic versions of find_first_bit and find_first_zero_bit are implemented in terms of the newly introduced __find_first_bit and __find_first_zero_bit. This patch does not remove the i386-specific implementation, but it does switch i386 to use the generic functions by setting GENERIC_FIND_FIRST_BIT=y for X86_32. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26bitops: use __fls for fls64 on 64-bit archsAlexander van Heukelum
Use __fls for fls64 on 64-bit archs. The implementation for 64-bit archs is moved from x86_64 to asm-generic. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26generic: implement __fls on all 64-bit archsAlexander van Heukelum
Implement __fls on all 64-bit archs: alpha has an implementation of fls64. Added __fls(x) = fls64(x) - 1. ia64 has fls, but not __fls. Added __fls based on code of fls. mips and powerpc have __ilog2, which is the same as __fls. Added __fls = __ilog2. parisc, s390, sh and sparc64: Include generic __fls. x86_64 already has __fls. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26generic: introduce a generic __fls implementationAlexander van Heukelum
Add a generic __fls implementation in the same spirit as the generic __ffs one. It finds the last (most significant) set bit in the given long value. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: merge the simple bitops and move them to bitops.hAlexander van Heukelum
Some of those can be written in such a way that the same inline assembly can be used to generate both 32 bit and 64 bit code. For ffs and fls, x86_64 unconditionally used the cmov instruction and i386 unconditionally used a conditional branch over a mov instruction. In the current patch I chose to select the version based on the availability of the cmov instruction instead. A small detail here is that x86_64 did not previously set CONFIG_X86_CMOV=y. Improved comments for ffs, ffz, fls and variations. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86, generic: optimize find_next_(zero_)bit for small constant-size bitmapsAlexander van Heukelum
This moves an optimization for searching constant-sized small bitmaps form x86_64-specific to generic code. On an i386 defconfig (the x86#testing one), the size of vmlinux hardly changes with this applied. I have observed only four places where this optimization avoids a call into find_next_bit: In the functions return_unused_surplus_pages, alloc_fresh_huge_page, and adjust_pool_surplus, this patch avoids a call for a 1-bit bitmap. In __next_cpu a call is avoided for a 32-bit bitmap. That's it. On x86_64, 52 locations are optimized with a minimal increase in code size: Current #testing defconfig: 146 x bsf, 27 x find_next_*bit text data bss dec hex filename 5392637 846592 724424 6963653 6a41c5 vmlinux After removing the x86_64 specific optimization for find_next_*bit: 94 x bsf, 79 x find_next_*bit text data bss dec hex filename 5392358 846592 724424 6963374 6a40ae vmlinux After this patch (making the optimization generic): 146 x bsf, 27 x find_next_*bit text data bss dec hex filename 5392396 846592 724424 6963412 6a40d4 vmlinux [ tglx@linutronix.de: build fixes ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86, uml: fix uml with generic find_next_bit for x86Alexander van Heukelum
Update UML to use the generic bits too. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: change x86 to use generic find_next_bitAlexander van Heukelum
The versions with inline assembly are in fact slower on the machines I tested them on (in userspace) (Athlon XP 2800+, p4-like Xeon 2.8GHz, AMD Opteron 270). The i386-version needed a fix similar to 06024f21 to avoid crashing the benchmark. Benchmark using: gcc -fomit-frame-pointer -Os. For each bitmap size 1...512, for each possible bitmap with one bit set, for each possible offset: find the position of the first bit starting at offset. If you follow ;). Times include setup of the bitmap and checking of the results. Athlon Xeon Opteron 32/64bit x86-specific: 0m3.692s 0m2.820s 0m3.196s / 0m2.480s generic: 0m2.622s 0m1.662s 0m2.100s / 0m1.572s If the bitmap size is not a multiple of BITS_PER_LONG, and no set (cleared) bit is found, find_next_bit (find_next_zero_bit) returns a value outside of the range [0, size]. The generic version always returns exactly size. The generic version also uses unsigned long everywhere, while the x86 versions use a mishmash of int, unsigned (int), long and unsigned long. Using the generic version does give a slightly bigger kernel, though. defconfig: text data bss dec hex filename x86-specific: 4738555 481232 626688 5846475 5935cb vmlinux (32 bit) generic: 4738621 481232 626688 5846541 59360d vmlinux (32 bit) x86-specific: 5392395 846568 724424 6963387 6a40bb vmlinux (64 bit) generic: 5392458 846568 724424 6963450 6a40fa vmlinux (64 bit) Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26uml: Kconfig cleanupIngo Molnar
pointed out by Linus: arch/um/Kconfig.x86_64 should include arch/x86/Kconfig.cpu instead of defining those symbols itself. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26uml: fix build errorIngo Molnar
fix: arch/um/os-Linux/helper.c: In function 'run_helper': arch/um/os-Linux/helper.c:73: error: 'PATH_MAX' undeclared (first use in this function) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes: x86 PAT: decouple from nonpromisc devmem x86 PAT: tone down debugging messages
2008-04-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvbLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: V4L/DVB (7751): ir-kbd-i2c: Save a temporary memory allocation in ir_probe V4L/DVB (7750): au0828/ cleanups and fixes V4L/DVB (7748): tuner-core: some adjustments at tuner logs, if debug enabled V4L/DVB (7746): pvrusb2: make signed one-bit bitfields unsigned V4L/DVB (7744): pvrusb2-dvb: add atsc/qam support for Hauppauge pvrusb2 model 751xx V4L/DVB (7742): cx88: Add support for the DViCO FusionHDTV_7_GOLD digital modes V4L/DVB (7741): s5h1411: Adding support for this ATSC/QAM demodulator V4L/DVB (7740): tuner-xc2028.c dubious !x & y V4L/DVB (7739): mt312.h: dubious one-bit signed bitfield V4L/DVB (7735): Fix compilation for au0828 V4L/DVB (7734): em28xx: copy and paste error in em28xx_init_isoc V4L/DVB (7733): blackbird_find_mailbox negative return ignored in blackbird_initialize_codec() V4L/DVB (7732): vivi: fix a warning
2008-04-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining: generic: make optimized inlining arch-opt-in x86: add optimized inlining
2008-04-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (61 commits) ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag sis5513: fail early for unsupported chipsets it821x: fix kzalloc() failure handling qd65xx: use IDE_HFLAG_SINGLE host flag qd65xx: always use ->selectproc method ide-cd: put proc-related functions together under single ifdef ide-cd: Replace __FUNCTION__ with __func__ IDE: Coding Style fixes to drivers/ide/ide-cd.c IDE: Coding Style fixes to drivers/ide/pci/cy82c693.c IDE: Coding Style fixes to drivers/ide/pci/it8213.c IDE: Coding Style fixes to drivers/ide/ide-floppy.c IDE: Coding Style fixes to drivers/ide/legacy/ali14xx.c IDE: Coding Style fixes to drivers/ide/legacy/hd.c IDE: Coding Style fixes to drivers/ide/pci/cmd640.c IDE: Coding Style fixes to drivers/ide/pci/opti621.c IDE: Coding Style fixes to drivers/ide/ide-pnp.c IDE: Coding Style fixes to drivers/ide/ide-proc.c IDE: Coding Style fixes to drivers/ide/legacy/ide-4drives.c IDE: Coding Style fixes to drivers/ide/legacy/umc8672.c IDE: Coding Style fixes to drivers/ide/pci/generic.c ...
2008-04-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-misc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-misc: (28 commits) x86: section mismatch fixes, #3 x86: section mismatch fixes, #2 x86: pgtable_32.h - prototype and section mismatch fixes x86: unlock_ExtINT_logic() - fix section mismatch warnings x86: uniq_ioapic_id - fix section mismatch warning x86: trampoline_32.S - switch to .cpuinit.data x86: use get_bios_ebda() x86: remove duplicate get_bios_ebda() from rio.h x86: get_bios_ebda() requires asm/io.h x86: use cpumask function for present, possible, and online cpus x86: cleanup div_sc() usage x86: cleanup clocksource_hz2mult usage x86: remove unnecessary memset and NULL check after alloc_bootmem() x86: use bitmap library for pin_programmed x86: use MP_intsrc_info() x86: use BUILD_BUG_ON() for the size of struct intel_mp_floating x86_64 ia32 ptrace: convert to compat_arch_ptrace x86_64 ia32 ptrace: use compat_ptrace_request for siginfo x86 signals: lift set_fs x86 signals: lift flags diddling code ...
2008-04-26x86 PAT: decouple from nonpromisc devmemIngo Molnar
Linus pointed it out that PAT should not depend on NONPROMISC_DEVMEM. Also make PAT non-default. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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