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2018-06-04NFSv4: Don't request size+change attribute if they are delegated to usTrond Myklebust1-5/+35
When we hold a delegation, we should not need to request attributes such as the file size or the change attribute. For some servers, avoiding asking for these unneeded attributes can improve the overall system performance. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Don't release the sequence slot until we've processed layoutget on openTrond Myklebust1-1/+2
If the server recalls the layout that was just handed out, we risk hitting a race as described in RFC5661 Section 2.10.6.3 unless we ensure that we release the sequence slot after processing the LAYOUTGET operation that was sent as part of the OPEN compound. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Don't call commit on failed layoutget-on-openTrond Myklebust1-6/+1
If the layoutget on open call failed, we can't really commit the inode, so don't bother calling it. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pNFS: Don't send LAYOUTGET on OPEN for read, if we already have cached dataTrond Myklebust1-0/+5
If we're only opening the file for reading, and the file is empty and/or we already have cached data, then heuristically optimise away the LAYOUTGET. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4/pnfs: Don't switch off layoutget-on-open for transient errorsTrond Myklebust1-7/+15
Ensure that we only switch off the LAYOUTGET operation in the OPEN compound when the server is truly broken, and/or it is complaining that the compound is too large. Currently, we end up turning off the functionality permanently, even for transient errors such as EACCES or ENOSPC. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4/pnfs: Ensure pnfs_parse_lgopen() won't try to parse uninitialised dataTrond Myklebust1-1/+2
We need to ensure that pnfs_parse_lgopen() doesn't try to parse a struct nfs4_layoutget_res that was not filled by a successful call to decode_layoutget(). This can happen if we performed a cached open, or if either the OP_ACCESS or OP_GETATTR operations preceding the OP_LAYOUTGET in the compound returned an error. By initialising the 'status' field to NFS4ERR_DELAY, we ensure that pnfs_parse_lgopen() won't try to interpret the structure. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Fix manipulation of NFS_LAYOUT_FIRST_LAYOUTGETFred Isaman3-8/+21
The flag was not always being cleared after LAYOUTGET on OPEN. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add barrier to prevent lgopen using LAYOUTGET during recallFred Isaman4-1/+11
Since the LAYOUTGET on OPEN can be sent without prior inode information, existing methods to prevent LAYOUTGET from being sent while processing CB_LAYOUTRECALL don't work. Track if a recall occurred while LAYOUTGET was being sent, and if so ignore the results. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Stop attempting LAYOUTGET on OPEN on failureFred Isaman3-2/+22
Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add LAYOUTGET to OPEN of an existing fileFred Isaman1-17/+73
Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pNFS: Refactor nfs4_layoutget_release()Trond Myklebust3-47/+52
Move the actual freeing of the struct nfs4_layoutget into fs/nfs/pnfs.c where it can be reused by the layoutget on open code. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add LAYOUTGET to OPEN of a new fileFred Isaman4-6/+121
This triggers when have no pre-existing inode to attach to. The preexisting case is saved for later. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Change pnfs_alloc_init_layoutget_args call signatureFred Isaman1-12/+28
Don't send in a layout, instead use the (possibly NULL) inode. This is needed for LAYOUTGET attached to an OPEN where the inode is not yet set. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Move nfs4_opendata into nfs4_fs.hFred Isaman3-25/+26
It will be needed now by the pnfs code. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add conditional encode/decode of LAYOUTGET within OPEN compoundFred Isaman3-4/+49
Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: move allocations out of nfs4_proc_layoutgetFred Isaman3-14/+17
They work better in the new alloc_init function. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: refactor send_layoutgetFred Isaman1-18/+15
Pull out the alloc/init part for eventual reuse by OPEN. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add layout driver flag PNFS_LAYOUTGET_ON_OPENFred Isaman2-0/+2
Driver can set flag to allow LAYOUTGET to be sent with OPEN. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS4: move ctx into nfs4_run_open_taskFred Isaman1-8/+11
Preparing to add conditional LAYOUTGET to OPEN rpc, the LAYOUTGET will need the ctx info. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Store return value of decode_layoutget for later processingFred Isaman2-5/+11
This will be needed to seperate return value of OPEN and LAYOUTGET when they are combined into a single RPC. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Remove redundant assignment from nfs4_proc_layoutget().Fred Isaman1-1/+0
nfs_init_sequence() will clear this for us. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Don't add a new lock on an interrupted wait for LOCKBenjamin Coddington1-10/+14
If the wait for a LOCK operation is interrupted, and then the file is closed, the locks cleanup code will assume that no new locks will be added to the inode after it has completed. We already have a mechanism to detect if there was signal, so let's use that to avoid recreating the local lock once the RPC completes. Also skip re-sending the LOCK operation for the various error cases if we were signaled. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> [Trond: Fix inverted test of locks_lock_inode_wait()] Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Always clear the pNFS layout when handling ESTALETrond Myklebust2-0/+9
If we get an ESTALE error in response to an RPC call operating on the file on the MDS, we should immediately cancel the layout for that file. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Fix possible 1-byte stack overflow in nfs_idmap_read_and_verify_messageDave Wysochanski1-2/+3
In nfs_idmap_read_and_verify_message there is an incorrect sprintf '%d' that converts the __u32 'im_id' from struct idmap_msg to 'id_str', which is a stack char array variable of length NFS_UINT_MAXLEN == 11. If a uid or gid value is > 2147483647 = 0x7fffffff, the conversion overflows into a negative value, for example: crash> p (unsigned) (0x80000000) $1 = 2147483648 crash> p (signed) (0x80000000) $2 = -2147483648 The '-' sign is written to the buffer and this causes a 1 byte overflow when the NULL byte is written, which corrupts kernel stack memory. If CONFIG_CC_STACKPROTECTOR_STRONG is set we see a stack-protector panic: [11558053.616565] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffffa05b8a8c [11558053.639063] CPU: 6 PID: 9423 Comm: rpc.idmapd Tainted: G W ------------ T 3.10.0-514.el7.x86_64 #1 [11558053.641990] Hardware name: Red Hat OpenStack Compute, BIOS 1.10.2-3.el7_4.1 04/01/2014 [11558053.644462] ffffffff818c7bc0 00000000b1f3aec1 ffff880de0f9bd48 ffffffff81685eac [11558053.646430] ffff880de0f9bdc8 ffffffff8167f2b3 ffffffff00000010 ffff880de0f9bdd8 [11558053.648313] ffff880de0f9bd78 00000000b1f3aec1 ffffffff811dcb03 ffffffffa05b8a8c [11558053.650107] Call Trace: [11558053.651347] [<ffffffff81685eac>] dump_stack+0x19/0x1b [11558053.653013] [<ffffffff8167f2b3>] panic+0xe3/0x1f2 [11558053.666240] [<ffffffff811dcb03>] ? kfree+0x103/0x140 [11558053.682589] [<ffffffffa05b8a8c>] ? idmap_pipe_downcall+0x1cc/0x1e0 [nfsv4] [11558053.689710] [<ffffffff810855db>] __stack_chk_fail+0x1b/0x30 [11558053.691619] [<ffffffffa05b8a8c>] idmap_pipe_downcall+0x1cc/0x1e0 [nfsv4] [11558053.693867] [<ffffffffa00209d6>] rpc_pipe_write+0x56/0x70 [sunrpc] [11558053.695763] [<ffffffff811fe12d>] vfs_write+0xbd/0x1e0 [11558053.702236] [<ffffffff810acccc>] ? task_work_run+0xac/0xe0 [11558053.704215] [<ffffffff811fec4f>] SyS_write+0x7f/0xe0 [11558053.709674] [<ffffffff816964c9>] system_call_fastpath+0x16/0x1b Fix this by calling the internally defined nfs_map_numeric_to_string() function which properly uses '%u' to convert this __u32. For consistency, also replace the one other place where snprintf is called. Signed-off-by: Dave Wysochanski <dwysocha@redhat.com> Reported-by: Stephen Johnston <sjohnsto@redhat.com> Fixes: cf4ab538f1516 ("NFSv4: Fix the string length returned by the idmapper") Cc: stable@vger.kernel.org # v3.4+ Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Fix up nfs_post_op_update_inode() to force ctime updatesTrond Myklebust1-1/+2
We do not want to ignore ctime updates that originate from functions such as link(). Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Ensure we revalidate the inode correctly after setaclTrond Myklebust1-1/+2
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Ensure we revalidate the inode correctly after remove or renameTrond Myklebust1-4/+14
We may need to revalidate the change attribute, ctime and the nlinks count. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Set the force revalidate flag if the inode is not completely initialisedTrond Myklebust1-0/+4
Ensure that a delegation doesn't cause us to skip initialising the inode if it was incomplete when we exited nfs_fhget() Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Fix up sillyrename()Trond Myklebust1-0/+10
Ensure that we register the fact that the inode ctime has changed. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Fix sillyrename to return the delegation when appropriateTrond Myklebust5-10/+15
Ensure that we pass down the inode of the file being deleted so that we can return any delegation being held. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Only pass the delegation to setattr if we're sending a truncateTrond Myklebust1-5/+7
Even then it isn't really necessary. The reason why we may not want to pass in a stateid in other cases is that we cannot use the delegation credential. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Merge nfs41_free_stateid() with _nfs41_free_stateid()Anna Schumaker1-23/+14
Having these exist as two functions doesn't seem to add anything useful, and I think merging them together makes this easier to follow. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Pass "privileged" value to nfs4_init_sequence()Anna Schumaker3-52/+33
We currently have a separate function just to set this, but I think it makes more sense to set it at the same time as the other values in nfs4_init_sequence() Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Move call to nfs4_state_protect() to nfs4_commit_setup()Anna Schumaker5-8/+10
Rather than doing this in the generic NFS client code. Let's put this with the other v4 stuff so it's all in one place. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Move call to nfs4_state_protect_write() to nfs4_write_setup()Anna Schumaker5-8/+10
This doesn't really need to be in the generic NFS client code, and I think it makes more sense to keep the v4 code in one place. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Avoid quadratic search when freeing delegations.NeilBrown1-4/+53
There are three places that walk all delegation for an nfs_client and restart whenever they find something interesting - potentially resulting in a quadratic search: If there are 10,000 uninteresting delegations followed by 10,000 interesting one, then the code skips over 100,000,000 delegations, which can take a noticeable amount of time. Of these nfs_delegation_reap_unclaimed() and nfs_reap_expired_delegations() are only called during unusual events: a server reboots or reports expired delegations, probably due to a network partition. Optimizing these is not particularly important. The third, nfs_client_return_marked_delegations(), is called periodically via nfs_expire_unreferenced_delegations(). It could cause periodic problems on a busy server. New delegations are added to the end of the list, so if there are 10,000 open files with delegations, and 10,000 more recently opened files that received delegations but are now closed, then nfs_client_return_marked_delegations() can take seconds to skip over the 10,000 open files 10,000 times. That is a waste of time. The avoid this waste a place-holder (an inode) is kept when locks are dropped, so that the place can usually be found again after taking rcu_readlock(). This place holder ensure that we find the right starting point in the list of nfs_servers, and makes is probable that we find the right starting point in the list of delegations. We might need to occasionally restart at the head of that list. It might be possible that the place_holder inode could lose its delegation separately, and then get a new one using the same (freed and then reallocated) 'struct nfs_delegation'. Were this to happen, the new delegation would be at the end of the list and we would miss returning some other delegations. This would have the effect of unnecessarily delaying the return of some unused delegations until the next time this function is called - typically 90 seconds later. As this is not a correctness issue and is vanishingly unlikely to happen, it does not seem worth addressing. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31rculist: add list_for_each_entry_from_rcu()NeilBrown1-0/+13
list_for_each_entry_from_rcu() is an RCU version of list_for_each_entry_from(). It walks a linked list under rcu protection, from a given start point. It is similar to list_for_each_entry_continue_rcu() but starts *at* the given position rather than *after* it. Naturally, the start point must be known to be in the list. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: use cond_resched() when restarting walk of delegation list.NeilBrown1-0/+3
In three places we walk the list of delegations for an nfs_client until an interesting one is found, then we act of that delegation and restart the walk. New delegations are added to the end of a list and the interesting delegations are usually old, so in many case we won't repeat a long walk over and over again, but it is possible - particularly if the first server in the list has a large number of uninteresting delegations. In each cache the work done on interesting delegations will often complete without sleeping, so this could loop many times without giving up the CPU. So add a cond_resched() at an appropriate point to avoid hogging the CPU for too long. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: slight optimization for walking list for delegationsNeilBrown1-3/+3
There are 3 places where we walk the list of delegations for an nfs_client. In each case there are two nested loops, one for nfs_servers and one for nfs_delegations. When we find an interesting delegation we try to get an active reference to the server. If that fails, it is pointless to continue to look at the other delegation for the server as we will never be able to get an active reference. So instead of continuing in the inner loop, break out and continue in the outer loop. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-28NFS: Optimise away lookups for rename targetsTrond Myklebust1-3/+5
We can optimise away any lookup for a rename target, unless we're being asked to revalidate a dentry that might be in use. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-28NFS: If the VFS sets LOOKUP_REVAL then force a lookup of the dentryTrond Myklebust1-1/+1
If nfs_lookup_revalidate() is called with LOOKUP_REVAL because a previous path lookup failed, then we ought to force a full lookup of the component name. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-28NFS: Optimise away the close-to-open GETATTR when we have NFSv4 OPENTrond Myklebust1-4/+16
NFSv4 should not need to perform an extra close-to-open GETATTR as part of the process of looking up a regular file, since the OPEN call will do that for us. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-28Merge tag 'nds32-for-linus-4.17-fixes' of ↵Linus Torvalds18-34/+130
git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux Pull nds32 fixes from Greentime Hu: "Bug fixes and build error fixes for nds32" * tag 'nds32-for-linus-4.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: nds32: Fix compiler warning, Wstringop-overflow, in vdso.c nds32: Disable local irq before calling cpu_dcache_wb_page in copy_user_highpage nds32: Flush the cache of the page at vmaddr instead of kaddr in flush_anon_page nds32: Correct flush_dcache_page function nds32: Fix the unaligned access handler nds32: Renaming the file for unaligned access nds32: To fix a cache inconsistency issue by setting correct cacheability of NTC nds32: To refine readability of INT_MASK_INITAIAL_VAL nds32: Fix the virtual address may map too much range by tlbop issue. nds32: Fix the allmodconfig build. To make sure CONFIG_CPU_LITTLE_ENDIAN is default y nds32: Fix build failed because arch_trace_hardirqs_off is changed to trace_hardirqs_off. nds32: Fix the unknown type u8 issue. nds32: Fix the symbols undefined issue by exporting them. nds32: Fix xfs_buf built failed by export invalidate_kernel_vmap_range and flush_kernel_vmap_range nds32: Fix drivers/gpu/drm/udl/udl_fb.c building error by defining PAGE_SHARED nds32: Fix building error of crypto/xor.c by adding xor.h nds32: Fix building error when CONFIG_FREEZE is enabled. nds32: lib: To use generic lib instead of libgcc to prevent the symbol undefined issue.
2018-05-27Linux 4.17-rc7v4.17-rc7Linus Torvalds1-1/+1
2018-05-27Merge tag 'kbuild-fixes-v4.17-2' of ↵Linus Torvalds1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild fixes from Masahiro Yamada: - enable '-fno-tree-loop-im' only when supported - add '-fno-PIE' option before the asm-goto test * tag 'kbuild-fixes-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Makefile: disable PIE before testing asm goto kbuild: gcov: enable -fno-tree-loop-im if supported
2018-05-26Merge tag 'armsoc-fixes' of ↵Linus Torvalds15-20/+20
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A few more fixes for v4.17: - a fix for a crash in scm_call_atomic on qcom platforms - display fix for Allwinner A10 - a fix that re-enables ethernet on Allwinner H3 (C.H.I.P et al) - a fix for eMMC corruption on hikey - i2c-gpio descriptor tables for ixp4xx ... plus a small typo fix" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: Fix i2c-gpio GPIO descriptor tables arm64: dts: hikey: Fix eMMC corruption regression firmware: qcom: scm: Fix crash in qcom_scm_call_atomic1() ARM: sun8i: v3s: fix spelling mistake: "disbaled" -> "disabled" ARM: dts: sun4i: Fix incorrect clocks for displays ARM: dts: sun8i: h3: Re-enable EMAC on Orange Pi One
2018-05-26Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds2-17/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 store buffer fixes from Thomas Gleixner: "Two fixes for the SSBD mitigation code: - expose SSBD properly to guests. This got broken when the CPU feature flags got reshuffled. - simplify the CPU detection logic to avoid duplicate entries in the tables" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/speculation: Simplify the CPU bug detection logic KVM/VMX: Expose SSBD properly to guests
2018-05-26Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds3-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Thomas Gleixner: "Three fixes for scheduler and kthread code: - allow calling kthread_park() on an already parked thread - restore the sched_pi_setprio() tracepoint behaviour - clarify the unclear string for the scheduling domain debug output" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched, tracing: Fix trace_sched_pi_setprio() for deboosting kthread: Allow kthread_park() on a parked kthread sched/topology: Clarify root domain(s) debug string
2018-05-26Merge tag 'hisi-fixes-for-4.17v2' of git://github.com/hisilicon/linux-hisi ↵Olof Johansson1-1/+0
into fixes ARM64: hisi fixes for 4.17 - Remove eMMC max-frequency property to fix eMMC corruption on hikey board * tag 'hisi-fixes-for-4.17v2' of git://github.com/hisilicon/linux-hisi: arm64: dts: hikey: Fix eMMC corruption regression Signed-off-by: Olof Johansson <olof@lixom.net>
2018-05-26ARM: Fix i2c-gpio GPIO descriptor tablesLinus Walleij10-11/+11
I used bad names in my clumsiness when rewriting many board files to use GPIO descriptors instead of platform data. A few had the platform_device ID set to -1 which would indeed give the device name "i2c-gpio". But several had it set to >=0 which gives the names "i2c-gpio.0", "i2c-gpio.1" ... Fix the offending instances in the ARM tree. Sorry for the mess. Fixes: b2e63555592f ("i2c: gpio: Convert to use descriptors") Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Simon Guinot <simon.guinot@sequanux.org> Reported-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
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