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* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2007-04-273-2/+14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (448 commits) [IPV4] nl_fib_lookup: Initialise res.r before fib_res_put(&res) [IPV6]: Fix thinko in ipv6_rthdr_rcv() changes. [IPV4]: Add multipath cached to feature-removal-schedule.txt [WIRELESS] cfg80211: Clarify locking comment. [WIRELESS] cfg80211: Fix locking in wiphy_new. [WEXT] net_device: Don't include wext bits if not required. [WEXT]: Misc code cleanups. [WEXT]: Reduce inline abuse. [WEXT]: Move EXPORT_SYMBOL statements where they belong. [WEXT]: Cleanup early ioctl call path. [WEXT]: Remove options. [WEXT]: Remove dead debug code. [WEXT]: Clean up how wext is called. [WEXT]: Move to net/wireless [AFS]: Eliminate cmpxchg() usage in vlocation code. [RXRPC]: Fix pointers passed to bitops. [RXRPC]: Remove bogus atomic_* overrides. [AFS]: Fix u64 printing in debug logging. [AFS]: Add "directory write" support. [AFS]: Implement the CB.InitCallBackState3 operation. ...
| * [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS supportEric Dumazet2007-04-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that network timestamps use ktime_t infrastructure, we can add a new SOL_SOCKET sockopt SO_TIMESTAMPNS. This command is similar to SO_TIMESTAMP, but permits transmission of a 'timespec struct' instead of a 'timeval struct' control message. (nanosecond resolution instead of microsecond) Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are mutually exclusive. sock_recv_timestamp() became too big to be fully inlined so I added a __sock_recv_timestamp() helper function. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: linux-arch@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolutionEric Dumazet2007-04-251-1/+2
| | | | | | | | | | | | | | | | | | | | Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: div64_64 consolidate (rev3)Stephen Hemminger2007-04-251-1/+10
| | | | | | | | | | | | | | Here is the current version of the 64 bit divide common code. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [MIPS] Replace old fashioned "__typeof" with "__typeof__".Robert P. J. Day2007-04-271-1/+1
| | | | | | | | | | | | | | | | | | | | [Robert's original log message said this was a bug but it isn't, it's just very old fashioned syntax that is not (no longer?) documented in the gcc documentation. So for the sake of uniformity I'm applying his patch but with a modified log message. -- Ralf] Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [MIPS] Updated Sibyte headersMark Mason2007-04-2712-107/+175
| | | | | | | | | | | | | | | | | | | | | | | | | | This is an update to the earlier patch for the sibyte headers, and superceeds the previous patch. Changes were necessary to get the tbprof driver working on the bcm1480. Patch to update Sibyte header files to match master versions maintained at Broadcom. This patch also corrects some whitespace problems, and (hopefully) shouldn't introduce any new ones. Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [MIPS] Remove unused argument from kunmap_coherent().Ralf Baechle2007-04-271-1/+1
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [MIPS] IP22: Get rid of volatile in IP22 core code.Ralf Baechle2007-04-273-3/+3
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [MIPS] JMR3927 cleanupAtsushi Nemoto2007-04-274-196/+4
|/ | | | | | | | | * Kill dead codes * Rearrange irq chip handlers * Minimize defconfig Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix wrong checksum for split TCP packets on 64-bit MIPSDave Johnson2007-04-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've traced down an off-by-one TCP checksum calculation error under the following conditions: 1) The TCP code needs to split a full-sized packet due to a reduced MSS (typically due to the addition of TCP options mid-stream like SACK). _AND_ 2) The checksum of the 2nd fragment is larger than the checksum of the original packet. After subtraction this results in a checksum for the 1st fragment with bits 16..31 set to 1. (this is ok) _AND_ 3) The checksum of the 1st fragment's TCP header plus the previously 32bit checksum of the 1st fragment DOES NOT cause a 32bit overflow when added together. This results in a checksum of the TCP header plus TCP data that still has the upper 16 bits as 1's. _THEN_ 4) The TCP+data checksum is added to the checksum of the pseudo IP header with csum_tcpudp_nofold() incorrectly (the bug). The problem is the checksum of the TCP+data is passed to csum_tcpudp_nofold() as an 32bit unsigned value, however the assembly code acts on it as if it is a 64bit unsigned value. This causes an incorrect 32->64bit extension if the sum has bit 31 set. The resulting checksum is off by one. This problems is data and TCP header dependent due to #2 and #3 above so it doesn't occur on every TCP packet split. Signed-off-by: Dave Johnson <djohnson+linux-mips@sw.starentnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix BUG(), BUG_ON() handlingAtsushi Nemoto2007-04-201-1/+2
| | | | | | | | | | With commit 63dc68a8cf60cb110b147dab1704d990808b39e2, kernel can not handle BUG() and BUG_ON() properly since get_user() returns false for kernel code. Use __get_user() to skip unnecessary access_ok(). This patch also make BRK_BUG code encoded in the TNE instruction. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Retry {save,restore}_fp_context if failed in atomic context.Atsushi Nemoto2007-04-201-2/+7
| | | | | | | | | | | | | | | The save_fp_context()/restore_fp_context() might sleep on accessing user stack and therefore might lose FPU ownership in middle of them. If these function failed due to "in_atomic" test in do_page_fault, touch the sigcontext area in non-atomic context and retry these save/restore operation. This is a replacement of a (broken) fix which was titled "Allow CpU exception in kernel partially". Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Disallow CpU exception in kernel again.Atsushi Nemoto2007-04-202-17/+0
| | | | | | | | | The commit 4d40bff7110e9e1a97ff8c01bdd6350e9867cc10 ("Allow CpU exception in kernel partially") was broken. The commit was to fix theoretical problem but broke usual case. Revert it for now. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add missing silicon revisions for BCM112xMark Mason2007-04-201-0/+1
| | | | | | | | | Recent versions of the BCM112X processors aren't recognized by Linux (preventing Linux from booting on those processors). This patch adds support for those that are missing. Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: Fix recursion in instant IPI replay code.Ralf Baechle2007-03-292-35/+36
| | | | | | | | | | | | local_irq_restore -> raw_local_irq_restore -> irq_restore_epilog -> smtc_ipi_replay -> smtc_ipi_dq -> spin_unlock_irqrestore -> _spin_unlock_irqrestore -> local_irq_restore The recursion does abort when there is no more IPI queued for a CPU, so this isn't usually fatal which is why we got away with this for so long until this was discovered by code inspection. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] MV64340: Add missing prototype for mv64340_irq_init().Ralf Baechle2007-03-291-0/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SB1250: Fix bugs/warnings by creative use of volatile.Ralf Baechle2007-03-241-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] ARC: Fix warning.Ralf Baechle2007-03-241-1/+1
| | | | | | | | The missing cast did result a warning when calling an 32-bit ARC firmware function that takes 5 arguments where the 5th argument is a pointer from a 64-bit kernel. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Implement flush_anon_page().Ralf Baechle2007-03-241-0/+12
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix pipeline hazard.Ralf Baechle2007-03-241-0/+1
| | | | | | | | | | | | | In the the sequence: ei .. mfc0 $x, $status the mfc0 may not see the SR_IE bit set. This was a deliberate bug in the kernel code because we knew this was a safe thing to do on all R2 silicon so far but new silicon is changing this. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make MIPS udelay() preempt safe under DEBUG_PREEMPTDeepak Saxena2007-03-241-1/+1
| | | | | | Signed-off-by: Manish Lachwani <mlachwani@mvista.com> Signed-off-by: Deepak Saxena <dsaxena@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Always use virt_to_phys() when translating kernel addressesFranck Bui-Huu2007-03-242-2/+2
| | | | | | | | | | | | | This patch fixes two places where we used plain 'x - PAGE_OFFSET' to achieve virtual to physical address convertions. This type of convertion is no more allowed since commit 6f284a2ce7b8bc49cb8455b1763357897a899abb. Reported-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> [Build fixes for machines that don't use the generic dma-coherence.h] Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* ide: remove static prototypes from include/asm-mips/mach-au1x00/au1xxx_ide.hDaniel Mack2007-03-171-34/+0
| | | | | | | | | | This patch removes the static prototypes from the au1xxx_ide.h, some of them were not even implemented. Also, they caused build breakage since they differed from the functions actually implemented in drivers/ide/mips/au1xxx-ide.c. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* [MIPS] Lockdep: Fix recursion bug.Ralf Baechle2007-03-173-40/+40
| | | | | | trace_hardirqs_off -> atomic_inc -> local_irq_restore -> trace_hardirqs_off Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] RTLX: Handle copy_*_user return values.Ralf Baechle2007-03-171-2/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] FPU ownership management & preemption fixesAtsushi Nemoto2007-03-174-11/+48
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] IP27, IP35: Fix warnings.Ralf Baechle2007-03-172-4/+6
| | | | | | | | | | | include/asm-mips/mach-ip27/dma-coherence.h:22: warning: 'plat_map_dma_mem' defined but not used include/asm-mips/mach-ip27/dma-coherence.h:41: warning: 'plat_unmap_dma_mem' defined but not used include/asm-mips/mach-ip32/dma-coherence.h:30: warning: 'plat_map_dma_mem' defined but not used include/asm-mips/mach-ip32/dma-coherence.h:63: warning: 'plat_unmap_dma_mem' defined but not used These functions are meant to be inlined anyway. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Fix ZBbus profilerRalf Baechle2007-03-091-110/+0
| | | | | | | | | | | o Fix build error. o Handle error returns. o Deal with signals received while sleeping. o Don't allow to be selected when we're not building the directory with the driver anyway. o Coding style cleanups. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] ISA: Fix typoRalf Baechle2007-03-081-1/+1
| | | | | | Lost CONFIG_ prefix discovered by Robert P. J. Day <rpjday@mindspring.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Wire up ioprio_set and ioprio_get.Ralf Baechle2007-03-071-6/+12
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix __raw_read_trylock() to allow multiple readersDave Johnson2007-03-071-2/+2
| | | | | | | | A deadlock can occur for mixed irq and non-irq rwlock readers if a 2nd reader attempts to take lock by looping around __raw_read_trylock(). Signed-off-by: Dave Johnson <djohnson+linux-mips@sw.starentnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Export __copy_user_inatomic.Ralf Baechle2007-03-071-0/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] R2 bitops compile fix for gcc < 4.0.Ralf Baechle2007-03-071-23/+33
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: Add fordward declarations for mm_struct and task_struct.Ralf Baechle2007-03-071-0/+3
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: <asm/mips_mt.h> must include <linux/cpumask.h>Ralf Baechle2007-03-071-0/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: <asm/smtc_ipi.h> must include <linux/spinlock.h>Ralf Baechle2007-03-071-0/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] sched: remove SMT niceCon Kolivas2007-03-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Remove the SMT-nice feature which idles sibling cpus on SMT cpus to facilitiate nice working properly where cpu power is shared. The idling of cpus in the presence of runnable tasks is considered too fragile, easy to break with outside code, and the complexity of managing this system if an architecture comes along with many logical cores sharing cpu power will be unworkable. Remove the associated per_cpu_gain variable in sched_domains used only by this code. Also: The reason is that with dynticks enabled, this code breaks without yet further tweaks so dynticks brought on the rapid demise of this code. So either we tweak this code or kill it off entirely. It was Ingo's preference to kill it off. Either way this needs to happen for 2.6.21 since dynticks has gone in. Signed-off-by: Con Kolivas <kernel@kolivas.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [MIPS] DMA: Fix a bunch of warnings due to missing inline keywords.Ralf Baechle2007-03-041-4/+6
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] RM: It should be #ifdef CONFIG_FOO not #if CONFIG_FOO ...Ralf Baechle2007-03-041-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix and cleanup the mess that a dozen prom_printf variants are.Ralf Baechle2007-03-044-9/+0
| | | | | | early_printk is a so much saner thing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Convert to RTC-class ds1742 driverAtsushi Nemoto2007-03-044-35/+18
| | | | | | | | | The generic rtc-ds1742 driver can be used for RBTX4927 and JMR3927 (with __swizzle_addr trick). This patch also removes MIPS local DS1742 stuff. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SNI: Fix mc146818_decode_yearThomas Bogendoerfer2007-03-044-6/+10
| | | | | | | | Big endian RMs uses a different mc146818_decode_year than little endian RMs Correct mc146818_decode_year for years before 2000 Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Remove unreferenced _IOC_SLMASK macro in ioctl.h.Robert P. J. Day2007-02-261-5/+0
| | | | | | | Delete the definition of the apparently unreferenced macro _IOC_SLMASK. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SNI: MIPS_CPU_IRQ_BASE cleanupThomas Bogendoerfer2007-02-261-5/+4
| | | | | | | Use MIPS_CPU_IRQ_BASE instead of own define. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add basic SMARTMIPS ASE supportFranck Bui-Huu2007-02-223-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds trivial support for SMARTMIPS extension. This extension is currently implemented by 4KS[CD] CPUs. Basically it saves/restores ACX register, which is part of the SMARTMIPS ASE, when needed. This patch does *not* add any support for Smartmips MMU features. Futhermore this patch does not add explicit support for 4KS[CD] CPUs since they are respectively mips32 and mips32r2 compliant. So with the current processor configuration, a platform that has such CPUs needs to select both configs: CPU_HAS_SMARTMIPS SYS_HAS_CPU_MIPS32_R[12] This is due to the processor configuration which is mixing up all the architecture variants and the processor types. The drawback of this, is that we currently pass '-march=mips32' option to gcc when building a kernel instead of '-march=4ksc' for 4KSC case. This can lead to a kernel image a little bit bigger than required. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fixup copy_from_user_inatomicRalf Baechle2007-02-201-2/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From the 01408c4939479ec46c15aa7ef6e2406be50eeeca log message: The problem is that when we write to a file, the copy from userspace to pagecache is first done with preemption disabled, so if the source address is not immediately available the copy fails *and* *zeros* *the* *destination*. This is a problem because a concurrent read (which admittedly is an odd thing to do) might see zeros rather that was there before the write, or what was there after, or some mixture of the two (any of these being a reasonable thing to see). If the copy did fail, it will immediately be retried with preemption re-enabled so any transient problem with accessing the source won't cause an error. The first copying does not need to zero any uncopied bytes, and doing so causes the problem. It uses copy_from_user_atomic rather than copy_from_user so the simple expedient is to change copy_from_user_atomic to *not* zero out bytes on failure. < --- end cite --- > This patch finally implements at least a not so pretty solution by duplicating the relevant part of __copy_user. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix struct sigcontext for N32 userlandAtsushi Nemoto2007-02-201-17/+16
| | | | | | | | | | The kernel use 64-bit for sc_regs[0], and both N32/N64 userland expects it was 64-bit. But size of 'long' on N32 is actually 32-bit. So this definition make some confusion. Use __u32 and __u64 for N32/N64 sigcontext to get rid of this confusion. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Support for several more SNI RM models.Thomas Bogendoerfer2007-02-183-13/+155
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add external declaration of pagetable_init() to pgalloc.hAtsushi Nemoto2007-02-181-0/+2
| | | | | | | | | | This fixes some sparse warnings. pgtable-32.c:15:6: warning: symbol 'pgd_init' was not declared. Should it be static? pgtable-32.c:32:13: warning: symbol 'pagetable_init' was not declared. Should it be static? Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Use MIPS R2 instructions for bitops.Ralf Baechle2007-02-181-1/+51
| | | | | | | | | Add R2 optimized variants of clear_bit, set_bit and test_and_clear_bit. With gcc 4.1.1 this saves 1592 bytes on a defconfig (minus IPv6) kernel. Turns out that R2 bitop instructions are no gain for the other bitop functions. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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