- 20 Aug, 2008 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (22 commits) [SCSI] ibmvfc: Driver version 1.0.2 [SCSI] ibmvfc: Add details to async event log [SCSI] ibmvfc: Sanitize response lengths [SCSI] ibmvfc: Fix for lost async events [SCSI] ibmvfc: Fixup host state during reinit [SCSI] ibmvfc: Fix another hang on module removal [SCSI] ibmvscsi: Fixup desired DMA value for shared memory partitions [SCSI] megaraid_sas: remove sysfs dbg_lvl world writeable permissions [SCSI] qla2xxx: Update version number to 8.02.01-k7. [SCSI] qla2xxx: Explicitly tear-down vports during PCI remove_one(). [SCSI] qla2xxx: Reference proper ha during SBR handling. [SCSI] qla2xxx: Set npiv_supported flag for FCoE HBAs. [SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands. [SCSI] qla2xxx: Correct vport-state management issues during ISP-ABORT. [SCSI] qla2xxx: Correct synchronization of software/firmware fcport states. [SCSI] scsi_dh: Initialize lun_state in check_ownership() [SCSI] scsi_dh: Do not use scsilun in rdac hardware handler [SCSI] megaraid_sas: version and Documentation Update [SCSI] megaraid_sas: add new controllers (0x78 0x79) [SCSI] megaraid_sas: add the shutdown DCMD cmd to driver shutdown routine ...
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Linus Torvalds authored
There was another FAT BKL conversion deadlock reported by Bart Trojanowski due to the BKL being used as a recursive lock by FAT, which was missed because it only triggers with 'sync' (or 'dirsync') mounts. The recursion worked for the BKL, but after the conversion to lock_super (which uses a mutex), it just deadlocks. Thanks to Bart for debugging this and testing the fix. The lock debugging information from the original report: ============================================= [ INFO: possible recursive locking detected ] 2.6.27-rc3-bisect-00448-ga7f5aaf3 #16 --------------------------------------------- mv/4020 is trying to acquire lock: (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20 but task is already holding lock: (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20 other info that might help us debug this: 3 locks held by mv/4020: #0: (&sb->s_type->i_mutex_key#9/1){--..}, at: [<c01b2336>] do_unlinkat+0x66/0x140 #1: (&sb->s_type->i_mutex_key#9){--..}, at: [<c01b0954>] vfs_unlink+0x84/0x110 #2: (&type->s_lock_key#9){--..}, at: [<c01a90fe>] lock_super+0x1e/0x20 stack backtrace: Pid: 4020, comm: mv Not tainted 2.6.27-rc3-bisect-00448-ga7f5aaf3 #16 [<c014e694>] validate_chain+0x984/0xea0 [<c0108d70>] ? native_sched_clock+0x0/0xf0 [<c014ee9c>] __lock_acquire+0x2ec/0x9b0 [<c014f5cf>] lock_acquire+0x6f/0x90 [<c01a90fe>] ? lock_super+0x1e/0x20 [<c044e5fd>] mutex_lock_nested+0xad/0x300 [<c01a90fe>] ? lock_super+0x1e/0x20 [<c01a90fe>] ? lock_super+0x1e/0x20 [<c01a90fe>] lock_super+0x1e/0x20 [<f8b3a700>] fat_write_inode+0x60/0x2b0 [fat] [<c0450878>] ? _spin_unlock_irqrestore+0x48/0x80 [<f8b3a953>] ? fat_sync_inode+0x3/0x20 [fat] [<f8b3a962>] fat_sync_inode+0x12/0x20 [fat] [<f8b37c7e>] fat_remove_entries+0xbe/0x120 [fat] [<f8b422ef>] vfat_unlink+0x5f/0x90 [vfat] [<f8b42290>] ? vfat_unlink+0x0/0x90 [vfat] [<c01b0968>] vfs_unlink+0x98/0x110 [<c01b2400>] do_unlinkat+0x130/0x140 [<c016a8f5>] ? audit_syscall_entry+0x105/0x150 [<c01b253b>] sys_unlinkat+0x3b/0x40 [<c01040d3>] sysenter_do_call+0x12/0x3f ======================= where the deadlock is due to the nesting of lock_super from vfat_unlink to fat_write_inode: - do_unlinkat - vfs_unlink - vfat_unlink * lock_super - fat_remove_entries - fat_sync_inode - fat_write_inode * lock_super and the fix is to simply remove the use of lock_super() in fat_write_inode. The lock_super() there had been just an automatic conversion of the kernel lock to the superblock lock, but no locking was actually needed there, since the code in fat_write_inode already protected all relevant accesses with a spinlock (sbi->inode_hash_lock to be exact). The only code inside the BKL (and thus the superblock lock) was accesses tp local variables or calls to functions that have long been SMP-safe (i.e. sb_bread, mark_buffe_dirty and brlese). Bart reports: "Looks good. I ran 10 parallel processes creating 1M files truncating them, writing to them again and then deleting them. This patch fixes the issue I ran into. Signed-off-by: Bart Trojanowski <bart@jukie.net>" Reported-and-tested-by: Bart Trojanowski <bart@jukie.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 19 Aug, 2008 28 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: Kconfig help update ieee1394: sbp2: let nodemgr retry node updates during bus reset series ieee1394: don't drop nodes during bus reset series ieee1394: regression in 2.6.25: updates should happen before probes
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: add acpi_find_root_bridge_handle PCI: acpi_pcihp: run _OSC on a root bridge x86/PCI: irq and pci_ids patch for Intel Ibex Peak PCHs x86/PCI: allow scanning of 255 PCI busses x86, pci: detect end_bus_number according to acpi/e820 reserved, v2 pci: debug extra pci bus resources pci: debug extra pci resources range
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Linus Torvalds authored
This reverts commit 34ae7f35, which has been reported to cause a number of problems. During suspend and resume, it apparently causes a crash in a CPU hotplug notifier to happen, although the exact details are sketchy because of the inability to get good traces during the suspend sequence. See buzilla entries http://bugzilla.kernel.org/show_bug.cgi?id=11296 http://bugzilla.kernel.org/show_bug.cgi?id=11339 for more examples and details. [ Mark: "Revert the patch for now. I'm still looking into getting a reliable reproduction and I do not have a fix at this time." ] Requested-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@inux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: evdev - fix printf() format for sizeof Input: remove version.h from drivers that don't need it Input: cobalt_btns - add missing MODULE_LICENSE
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits) pkt_sched: Prevent livelock in TX queue running. Revert "pkt_sched: Add BH protection for qdisc_stab_lock." Revert "pkt_sched: Protect gen estimators under est_lock." pkt_sched: remove bogus block (cleanup) nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization netfilter: ctnetlink: sleepable allocation with spin lock bh netfilter: ctnetlink: fix sleep in read-side lock section netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks netfilter: ipt_addrtype: Fix matching of inverted destination address type dccp: Fix panic caused by too early termination of retransmission mechanism pkt_sched: Don't hold qdisc lock over qdisc_destroy(). pkt_sched: Add lockdep annotation for qdisc locks pkt_sched: Never schedule non-root qdiscs. removed unused #include <version.h> rt2x00: Fix txdone_entry_desc_flags b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306 mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE p54u: reset skb's data/tail pointer on requeue p54: move p54_vdcf_init to the right place. iwlwifi: fix printk newlines ...
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Stefan Richter authored
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Stefan Richter authored
sbp2 was too quick to report .update() to the ieee1394 core as failed. (Logged as "Failed to reconnect to sbp2 device!".) The core would then unbind sbp2 from the device. This is not justified if the .update() failed because another bus reset happened. We check this and tell the ieee1394 that .update() succeeded, and the core will call sbp2's .update() for the new bus reset as well. This improves reconnection/re-login especially on buses with several disks as they may issue bus resets in close succession when they come online. Tested by Damien Benoist. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Stefan Richter authored
nodemgr_node_probe checked for generation increments too late and therefore prematurely reported nodes as "suspended". Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11349. Reported and tested by Damien Benoist. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Stefan Richter authored
Regression since commit 73cf6023, "ieee1394: use class iteration api": The two loops for (1.) driver updates and (2.) driver probes were replaced by a single loop with bogus needs_probe checks. Hence updates and probes were now intermixed, and especially sbp2 updates (reconnects) held up longer than necessary. While we fix it, change the needs_probe flag to bool type for clarity. Tested by Damien Benoist. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Geert Uytterhoeven authored
commit f2afa771 ("Input: paper over a bug in Synaptics X driver") introduced a compiler warning on 64-bit platforms, as sizeof() returns a size_t, not an (unsigned) int: | drivers/input/evdev.c: In function 'handle_eviocgbit': | drivers/input/evdev.c:684: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Use the proper `z' modifier for size_t, and make the printf() formats for the sizes unsigned while we're at it. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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David S. Miller authored
If dev_deactivate() is trying to quiesce the queue, it is theoretically possible for another cpu to livelock trying to process that queue. This happens because dev_deactivate() grabs the queue spinlock as it checks the queue state, whereas net_tx_action() does a trylock and reschedules the qdisc if it hits the lock. This breaks the livelock by adding a check on __QDISC_STATE_DEACTIVATED to net_tx_action() when the trylock fails. Based upon feedback from Herbert Xu and Jarek Poplawski. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This reverts commit 1cfa2666. qdisc_destroy() runs fully under RTNL again and not from softint any longer, so this change is no longer needed. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This reverts commit d4766692. qdisc_destroy() now runs in RTNL fully again, so this change is no longer needed. Signed-off-by: David S. Miller <davem@davemloft.net>
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Ilpo Järvinen authored
...Last block local var got just deleted. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
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Stephen Hemminger authored
Use incoming network tuple as seed for NAT port randomization. This avoids concerns of leaking net_random() bits, and also gives better port distribution. Don't have NAT server, compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> [ added missing EXPORT_SYMBOL_GPL ] Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso authored
This patch removes a GFP_KERNEL allocation while holding a spin lock with bottom halves disabled in ctnetlink_change_helper(). This problem was introduced in 2.6.23 with the netfilter extension infrastructure. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso authored
Fix allocation with GFP_KERNEL in ctnetlink_create_conntrack() under read-side lock sections. This problem was introduced in 2.6.25. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso authored
If we create a conntrack that has NAT handlings and a helper, the helper is assigned twice. This happens because nf_nat_setup_info() - via nf_conntrack_alter_reply() - sets the helper before ctnetlink, which indeed does not check if the conntrack already has a helper as it thinks that it is a brand new conntrack. The fix moves the helper assignation before the set of the status flags. This avoids a bogus assertion in __nf_ct_ext_add (if netfilter assertions are enabled) which checks that the conntrack must not be confirmed. This problem was introduced in 2.6.23 with the netfilter extension infrastructure. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
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Anders Grafström authored
This patch fixes matching of inverted destination address type. Signed-off-by: Anders Grafström <grfstrm@users.sourceforge.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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Gerrit Renker authored
Thanks is due to Wei Yongjun for the detailed analysis and description of this bug at http://marc.info/?l=dccp&m=121739364909199&w=2 The problem is that invalid packets received by a client in state REQUEST cause the retransmission timer for the DCCP-Request to be reset. This includes freeing the Request-skb ( in dccp_rcv_request_sent_state_process() ). As a consequence, * the arrival of further packets cause a double-free, triggering a panic(), * the connection then may hang, since further retransmissions are blocked. This patch changes the order of statements so that the retransmission timer is reset, and the pending Request freed, only if a valid Response has arrived (or the number of sysctl-retries has been exhausted). Further changes: ---------------- To be on the safe side, replaced __kfree_skb with kfree_skb so that if due to unexpected circumstances the sk_send_head is NULL the WARN_ON is used instead. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Based upon reports by Denys Fedoryshchenko, and feedback and help from Jarek Poplawski and Herbert Xu. We always either: 1) Never made an external reference to this qdisc. or 2) Did a dev_deactivate() which purged all asynchronous references. So do not lock the qdisc when we call qdisc_destroy(), it's illegal anyways as when we drop the lock this is free'd memory. Signed-off-by: David S. Miller <davem@davemloft.net>
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Jarek Poplawski authored
Qdisc locks are initialized in the same function, qdisc_alloc(), so lockdep can't distinguish tx qdisc lock from rx and reports "possible recursive locking detected" when both these locks are taken eg. while using act_mirred with ifb. This looks like a false positive. Anyway, after this patch these locks will be reported more exactly. Reported-by: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Based upon initial discovery and patch by Jarek Poplawski. The qdisc watchdogs can be attached to any qdisc, not just the root, so make sure we schedule the correct one. CBQ has a similar bug. Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] use generic compat_old_sys_readdir [IA64] pci_acpi_scan_root cleanup [IA64] Shrink shadow_flush_counts to a short array to save 8k of per_cpu area. [IA64] Remove sn2_defconfig.
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ata: add missing ATA_* defines ata: add missing ATA_CMD_* defines ata: add missing ATA_ID_* defines (take 2) sgiioc4: fixup message on resource allocation failure ide-cd: use bcd2bin/bin2bcd cdrom: handle TOC gdrom: add dummy audio_ioctl handler viocd: add dummy audio ioctl handler cleanup powerpc/include/asm/ide.h drivers/ide/pci/: use __devexit_p()
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Jesse Barnes authored
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- 18 Aug, 2008 10 commits
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Christoph Hellwig authored
Switch ia64 to the generic compat_sys_old_readdir which is identical except for slightly better error handling. Also remove sys32_getdents which already isn't wired up to the syscall table anymore in favour of compat_sys_getdents. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
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Luck, Tony authored
The code walks all the acpi _CRS methods to see how many windows to allocate. It then scans them all again to insert_resource() for each *even if the first scan found that there were none*. Move the second scan inside the "if (windows)" clause. Signed-off-by: Tony Luck <tony.luck@intel.com>
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Robin Holt authored
Making allmodconfig will break the current build. This patch shrinks the per_cpu__shadow_flush_counts from 16k to 8k which frees enough space to allow allmodconfig to successfully complete. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11338Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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Robin Holt authored
Not really a patch as much as a remove this file request. Now that generic_defconfig supports all the configurations SGI currently supports and has NR_CPUS and NR_NODES at our largest configurations, we have no reason to maintain the extra defconfig file. Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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Jiri Slaby authored
Consolidate finding of a root bridge and getting its handle to the one inline function. It's cut & pasted on multiple places. Use this new inline in those. Cc: kristen.c.accardi@intel.com Acked-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Jiri Slaby authored
_OSC should be ran on a root bridge instead of the device itself. Do this before touching OSHP since PCI fw specs states that _OSC should be preferred over OSHP (however if the device has OSHP but not _OSC -- not a root bridge -- it's not). Cc: kristen.c.accardi@intel.com Acked-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Bartlomiej Zolnierkiewicz authored
Add missing ATA_* defines to <linux/ata.h>. Also add ATAPI_{LFS,EOM,ILI,IO,CODE} defines while at it. Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bartlomiej Zolnierkiewicz authored
Add missing ATA_CMD_* defines to <linux/ata.h>. Also add ATA_EXABYTE_ENABLE_NEST, SETFEATURES_AAM_* and ATA_SMART_* defines while at it. Partially based on earlier work by Chris Wedgwood. Acked-by: Chris Wedgwood <cw@f00f.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bartlomiej Zolnierkiewicz authored
Add missing ATA_ID_* defines and update {ata,atapi}_*() inlines accordingly. The currently unused defines are needed for the forthcoming drivers/ide/ changes. v2: Add ATA_ID_SPG. Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bartlomiej Zolnierkiewicz authored
There can be more than one sgiioc4 card in the system so print also PCI device name on resource allocation failure (so we know which one is the problematic one). Reported-by: Jeremy Higdon <jeremy@sgi.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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