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2007-10-25Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)
2007-10-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: fix bogus KERN_ALERT on oops x86: lguest build fix x86: fix CONFIG_KEXEC build breakage
2007-10-25Merge branch 'sg' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'sg' of git://git.kernel.dk/linux-2.6-block: fix sg_phys to use dma_addr_t ub: add sg_init_table for sense and read capacity commands x86: pci-gart fix blackfin: fix sg fallout xtensa: dma-mapping.h is using linux/scatterlist.h functions, so include it SG: audit of drivers that use blk_rq_map_sg() arch/um/drivers/ubd_kern.c: fix a building error SG: Change sg_set_page() to take length and offset argument AVR32: Fix sg_page breakage mmc: sg fallout m68k: sg fallout More SG build fixes sg: add missing sg_init_table calls to zfcp SG build fix
2007-10-25x86: pci-gart fixFUJITA Tomonori
map_sg could copy the last sg element to another position (if merging some elements). It breaks sg chaining. This copies only dma_address/length instead of the whole sg element. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-25lguest: documentation updateRusty Russell
Went through the documentation doing typo and content fixes. This patch contains only comment and whitespace changes. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-25lguest: build fixJeff Garzik
Fix this error (i386 !SMP build) arch/x86/lguest/boot.c: In function ‘lguest_init’: arch/x86/lguest/boot.c:1059: error: ‘pm_power_off’ undeclared (first use in this function) by including linux/pm.h. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-25lguest: use defines from x86 headers instead of magic numbersRusty Russell
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-24blackfin: fix sg falloutAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24arch/um/drivers/ubd_kern.c: fix a building errorWANG Cong
Fix this uml building error: arch/um/drivers/ubd_kern.c: In function 'do_ubd_request': arch/um/drivers/ubd_kern.c:1118: error: implicit declaration of function 'sg_page' arch/um/drivers/ubd_kern.c:1118: warning: passing argument 6 of 'prepare_request' makes pointer from integer without a cast make[1]: *** [arch/um/drivers/ubd_kern.o] Error 1 make: *** [arch/um/drivers] Error 2 Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Add sg_init_table() call as well. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-24x86: fix bogus KERN_ALERT on oopsAlexey Dobriyan
fix this: printing eip: f881b9f3 *pdpt = 0000000000003001 <1>*pde = 000000000480a067 *pte = 0000000000000000 ^^^ [ mingo: added KERN_CONT as suggested by Pekka Enberg ] Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-24x86: lguest build fixJeff Garzik
Fix this error (i386 !SMP build): arch/x86/lguest/boot.c: In function lguest_init: arch/x86/lguest/boot.c:1059: error: pm_power_off undeclared (first use in this function) by including linux/pm.h. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-24x86: fix CONFIG_KEXEC build breakageMike Galbraith
X86_32 build fix to commit 62a31a03b3d2a9d20e7a073e2cd9b27bfb7d6a3f Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-24m68k: sg falloutGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24More SG build fixesDavid Miller
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24SG build fixDavid Miller
Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-23[SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)Chris Wright
Looks like the MAP_FIXED case is using the wrong address hint. I'd expect the comment "don't mess with it" means pass the request straight on through, not change the address requested to -ENOMEM. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-23m68knommu: mark mem init functions as __initGreg Ungerer
Mark the m68knommu memory init functions as __init. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: mark setup_arch() as __initGreg Ungerer
Mark the m68knommu setup_arch() function as __init. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: cleanup 68VZ328 init codeGreg Ungerer
Removed header includes not needed. Remove use of old m68knommu timer function pointers. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: cleanup 68EZ328 init codeGreg Ungerer
Clean up 68EZ328 timer support code. Removed header includes not needed. Remove use of old m68knommu timer function pointers. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: cleanup 68360 startup codeGreg Ungerer
Clean up 68360 timer support code. Removed header includes not needed. Remove use of old m68knommu timer function pointers. Use common function naming for 68328 timer functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: cleanup 68328 timer codeGreg Ungerer
Use common function naming for 68328 timer functions to make them consistent with the various other hardware m68knommu timers. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: cleanup 68328 init codeGreg Ungerer
Clean up 68328 timer support code. Removed header includes not needed. Remove use of old m68knommu timer function pointers. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: remove unused variables in setup.cGreg Ungerer
Remove unused variables from setup.c code. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23Merge branch 'irq-upstream' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6 * 'irq-upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6: [SPARC, XEN, NET/CXGB3] use irq_handler_t where appropriate drivers/char/riscom8: clean up irq handling isdn/sc: irq handler clean isdn/act2000: fix major bug. clean irq handler. char/pcmcia/synclink_cs: trim trailing whitespace drivers/char/ip2: separate polling and irq-driven work entry points drivers/char/ip2: split out irq core logic into separate function [NETDRVR] lib82596, netxen: delete pointless tests from irq handler Eliminate pointless casts from void* in a few driver irq handlers. [PARPORT] Remove unused 'irq' argument from parport irq functions [PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt} [PARPORT] Consolidate code copies into a single generic irq handler
2007-10-23[SPARC, XEN, NET/CXGB3] use irq_handler_t where appropriateJeff Garzik
Rather than hand-rolling our own prototype, make the code more future-proof by using the standard irq_handler_t typedef. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-23Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds
* ssh://master.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (35 commits) x86: Add HPET force support for MCP55 (nForce 5) chipsets x86: Force enable HPET for CK804 (nForce 4) chipsets x86: clean up setup.h and the boot code x86: Save registers in saved_context during suspend and hibernation x86: merge setup_32/64.h x86: merge signal_32/64.h x86: merge required-features.h x86: merge sigcontext_32/64.h x86: merge msr_32/64.h x86: merge mttr_32/64.h x86: merge statfs_32/64.h x86: merge stat_32/64.h x86: merge shmbuf_32/64.h x86: merge ptrace_32/64.h x86: merge msgbuf_32/64.h x86: merge elf_32/64.h x86: merge byteorder_32/64.h x86: whitespace cleanup of mce_64.c x86: consolidate the cpu/ related code usage x86: prepare consolidation of cpu/ related code usage ...
2007-10-23Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits) [SCSI] qla2xxx: Update version number to 8.02.00-k5. [SCSI] qla2xxx: Correct display of ISP serial-number. [SCSI] qla2xxx: Correct residual-count handling discrepancies during UNDERRUN handling. [SCSI] qla2xxx: Make driver (mostly) legacy I/O port free. [SCSI] qla2xxx: Fix issue where final flash-segment updates were falling into the slow-path write handler. [SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates. [SCSI] qla2xxx: Defer explicit interrupt-polling processing to init-time scenarios. [SCSI] qla2xxx: Resync with latest HBA SSID specification -- 2.2u. [SCSI] sym53c8xx: Remove sym_xpt_async_sent_bdr [SCSI] sym53c8xx: Remove pci_dev pointer from sym_shcb [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE [SCSI] sym53c8xx: Get rid of IRQ_FMT and IRQ_PRM [SCSI] sym53c8xx: Use scmd_printk where appropriate [SCSI] sym53c8xx: Simplify DAC DMA handling [SCSI] sym53c8xx: Remove tag_ctrl module parameter [SCSI] sym53c8xx: Remove io_ws, mmio_ws and ram_ws elements [SCSI] sym53c8xx: Remove ->device_id [SCSI] sym53c8xx: Use pdev->revision [SCSI] sym53c8xx: PCI Error Recovery support [SCSI] sym53c8xx: Stop overriding scsi_done ...
2007-10-23Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4630/1: Fix the vector stride of the double vector instruction. [ARM] 4629/1: Fix VFP emulation code to clear all exception flags of FPEXC [ARM] 4613/1: pxa300: MFP typo fix
2007-10-23x86: Add HPET force support for MCP55 (nForce 5) chipsetsCarlos Corbacho
Add support to force_hpet for all known MCP55 (nForce 5) chipset LPC bridges. These are the untested nForce 5 chips (taken from Mikko's original patch, and checked against pci.ids). Signed-off-by: Carlos Corbacho <cathectic@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> arch/x86/kernel/quirks.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
2007-10-23x86: Force enable HPET for CK804 (nForce 4) chipsetsCarlos Corbacho
This patch adds a quirk from LinuxBIOS to force enable HPET on the nVidia CK804 (nForce 4) chipset. This quirk can very likely support more than just nForce 4 (LinuxBIOS use the same code for nForce 5), and possibly nForce 3, but I don't have those chipsets, so cannot add and test them. Tested on an Abit KN9 (CK804). Signed-off-by: Carlos Corbacho <cathectic@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Documentation/kernel-parameters.txt | 3 +- arch/x86/kernel/quirks.c | 37 +++++++++++++++++++++++++++++++++++- 2 files changed, 38 insertions(+), 2 deletions(-)
2007-10-23x86: clean up setup.h and the boot codeH. Peter Anvin
Make <asm/setup.h> usable by the boot code. Clean up vestiges of the old command-line protocol from setup.h and head_32.S (it is still supported from the boot loader point of view, since it is converted to the new command-line protocol by the boot code.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: Save registers in saved_context during suspend and hibernationRafael J. Wysocki
During hibernation and suspend on x86_64 save CPU registers in the saved_context structure rather than in a handful of separate variables. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: whitespace cleanup of mce_64.cThomas Gleixner
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: consolidate the cpu/ related code usageThomas Gleixner
The x86_64 arch/x86/kernel/Makefile uses references into arch/x86/kernel/cpu/... to use code from there. Unifiy it with the nicely structured i386 way and reuse the existing subdirectory make rules. Also move the machine check related source into ...kernel/cpu/mcheck, where the other machine check related code is. No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: prepare consolidation of cpu/ related code usageThomas Gleixner
Move mce.c to mce_32.c to allow the later move of the x86_64 mce.c from arch/x86/kernel/ to ...kernel/cpu/mcheck No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: prepare consolidation of cpu/ related MakefilesThomas Gleixner
Prepare the makefiles in x86/kernel/cpu and x86/kernel/cpu/mcheck to be used by the x86_64 build as well. No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: Unify arch/x86/kernel/acpi MakefilesThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: merge arch/x86/crypto MakefilesThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: Add BITS to allow simple Makefile sharingThomas Gleixner
Preperatory patch to simplify the sharing of Makefiles in arch/x86. Linus came up with this during a discussion about the ugliness of ifeq($CONFIG_X86_32),y) and obj-$(CONFIG_X86_32) in the shared Makefiles. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: unify crash_32/64.cHiroshi Shimamoto
Most of contents in crash are same. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: add lapic_shutdown for x86_64Hiroshi Shimamoto
Preperatory patch to allow crash_32/64.c merging Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: ARRAY_SIZE cleanupAlejandro Martinez Ruiz
Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: fix more TSC clock source calibration errorsDave Johnson
The previous patch wasn't correctly handling the 'count' variable. If a CPU gave bad results on the 1st or 2nd run but good results on the 3rd, it wouldn't do the correct thing. No idea if any such CPU exists, but the patch below handles that case by discarding the bad runs. If a bad result (too quick, or too slow) occurs on any of the 3 runs it will be discarded. Also updated some comments to explain what's going on. Signed-off-by: Dave Johnson <djohnson@sw.starentnetworks.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: fix TSC clock source calibration errorDave Johnson
I ran into this problem on a system that was unable to obtain NTP sync because the clock was running very slow (over 10000ppm slow). ntpd had declared all of its peers 'reject' with 'peer_dist' reason. On investigation, the tsc_khz variable was significantly incorrect causing xtime to run slow. After a reboot tsc_khz was correct so I did a reboot test to see how often the problem occurred: Test was done on a 2000 Mhz Xeon system. Of 689 reboots, 8 of them had unacceptable tsc_khz values (>500ppm): range of tsc_khz # of boots % of boots ---------------- ---------- ---------- < 1999750 0 0.000% 1999750 - 1999800 21 3.048% 1999800 - 1999850 166 24.128% 1999850 - 1999900 241 35.029% 1999900 - 1999950 211 30.669% 1999950 - 2000000 42 6.105% 2000000 - 2000000 0 0.000% 2000050 - 2000100 0 0.000% [...] 2000100 - 2015000 1 0.145% << BAD 2015000 - 2030000 6 0.872% << BAD 2030000 - 2045000 1 0.145% << BAD 2045000 < 0 0.000% The worst boot was 2032.577 Mhz, over 1.5% off! It appears that on rare occasions, mach_countup() is taking longer to complete than necessary. I suspect that this is caused by the CPU taking a periodic SMI interrupt right at the end of the 30ms calibration loop. This would cause the loop to delay while the SMI BIOS hander runs. The resulting TSC value is beyond what it actually should be resulting in a higher tsc_khz. The below patch makes native_calculate_cpu_khz() take the best (shortest duration, lowest khz) run of it's 3 calibration loops. If a SMI goes off causing a bad result (long duration, higher khz) it will be discarded. With the patch applied, 300 boots of the same system produce good results: range of tsc_khz # of boots % of boots ---------------- ---------- ---------- < 1999750 0 0.000% 1999750 - 1999800 30 10.000% 1999800 - 1999850 166 55.333% 1999850 - 1999900 89 29.667% 1999900 - 1999950 15 5.000% 1999950 < 0 0.000% Problem was found and tested against 2.6.18. Patch is against 2.6.22. Signed-off-by: Dave Johnson <djohnson@sw.starentnetworks.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: add instrumentation menuAdrian Bunk
It seems commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 was incomplete due to a clash with the x86 architecture merge. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguestLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest: (45 commits) Use "struct boot_params" in example launcher Loading bzImage directly. Revert lguest magic and use hook in head.S Update lguest documentation to reflect the new virtual block device name. generalize lgread_u32/lgwrite_u32. Example launcher handle guests not being ready for input Update example launcher for virtio Lguest support for Virtio Remove old lguest I/O infrrasructure. Remove old lguest bus and drivers. Virtio helper routines for a descriptor ringbuffer implementation Module autoprobing support for virtio drivers. Virtio console driver Block driver using virtio. Net driver using virtio Virtio interface Boot with virtual == physical to get closer to native Linux. Allow guest to specify syscall vector to use. Rename "cr3" to "gpgdir" to avoid x86-specific naming. Pagetables to use normal kernel types ...
2007-10-23Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Add Vitaly Bordug as PPC8xx maintainer [POWERPC] 4xx: Enable EMAC on Bamboo board [POWERPC] 4xx: Enable EMAC for PPC405 Walnut board [POWERPC] 4xx: Fix timebase clock selection on Walnut [POWERPC] 4xx: Enable EMAC on the PPC 440GP Ebony board [POWERPC] 4xx: Split early debug output and early boot console for 44x [POWERPC] 4xx: Enable NEW EMAC support for Sequoia 440EPx. [POWERPC] 4xx: Add RGMII support for Sequoia 440EPx
2007-10-23Merge branch 'for-linus' of ↵Linus Torvalds
ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 * 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: [AVR32] ARRAY_SIZE() cleanup [AVR32] Implement at32_add_device_cf() [AVR32] Implement more at32_add_device_foo() functions [AVR32] Fix a couple of sparse warnings [AVR32] Wire up AT73C213 sound driver on ATSTK1000 board [AVR32] Platform code for pata_at32
2007-10-23Merge branch 'sg' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'sg' of git://git.kernel.dk/linux-2.6-block: sparc64: zero out dma_length fvr32: fixup dma-mapping for new sg layout sh/sh64: fixup dma-mapping for new sg layout Fix sctp compile m68knommu: remove sg_address() frv: update comment in scatterlist to reflect new setup blackfin: remove sg_address() arm: sg fallout mips: sg_page() fallout alpha: sg_virt() fallout intel-iommu: fix sg_page() parisc: fix sg_page() fallout ide: build fix net: fix xfrm build - missing scatterlist.h include [BLOCK] blk_rq_map_sg: force clear termination bit [BLOCK] Don't clear sg_dma_len/addr() in blk_rq_map_sg() s390 zfcp: sg fixups powerpc: Fix fallout from sg_page() changes IB/ehca: Fix sg_page() fallout arm: build fix