BMC/Intel-BMC/linux.git/net/9p, branch dev-4.17

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2018-06-02T16:55:44+00:00

Pull rdma fixes from Jason Gunthorpe: "Just three small last minute regressions that were found in the last week. The Broadcom fix is a bit big for rc7, but since it is fixing driver crash regressions that were merged via netdev into rc1, I am sending it. - bnxt netdev changes merged this cycle caused the bnxt RDMA driver to crash under certain situations - Arnd found (several, unfortunately) kconfig problems with the patches adding INFINIBAND_ADDR_TRANS. Reverting this last part, will fix it more fully outside -rc. - Subtle change in error code for a uapi function caused breakage in userspace. This was bug was subtly introduced cycle" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/core: Fix error code for invalid GID entry IB: Revert "remove redundant INFINIBAND kconfig dependencies" RDMA/bnxt_re: Fix broken RoCE driver due to recent L2 driver changes

IB: Revert "remove redundant INFINIBAND kconfig dependencies"

2018-05-28T16:40:16+00:00

Several subsystems depend on INFINIBAND_ADDR_TRANS, which in turn depends on INFINIBAND. However, when with CONFIG_INIFIBAND=m, this leads to a link error when another driver using it is built-in. The INFINIBAND_ADDR_TRANS dependency is insufficient here as this is a 'bool' symbol that does not force anything to be a module in turn. fs/cifs/smbdirect.o: In function `smbd_disconnect_rdma_work': smbdirect.c:(.text+0x1e4): undefined reference to `rdma_disconnect' net/9p/trans_rdma.o: In function `rdma_request': trans_rdma.c:(.text+0x7bc): undefined reference to `rdma_disconnect' net/9p/trans_rdma.o: In function `rdma_destroy_trans': trans_rdma.c:(.text+0x830): undefined reference to `ib_destroy_qp' trans_rdma.c:(.text+0x858): undefined reference to `ib_dealloc_pd' Fixes: 9533b292a7ac ("IB: remove redundant INFINIBAND kconfig dependencies") Signed-off-by: Arnd Bergmann Acked-by: Greg Thelen Signed-off-by: Jason Gunthorpe

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2018-05-24T21:12:05+00:00

Pull rdma fixes from Jason Gunthorpe: "This is pretty much just the usual array of smallish driver bugs. - remove bouncing addresses from the MAINTAINERS file - kernel oops and bad error handling fixes for hfi, i40iw, cxgb4, and hns drivers - various small LOC behavioral/operational bugs in mlx5, hns, qedr and i40iw drivers - two fixes for patches already sent during the merge window - a long-standing bug related to not decreasing the pinned pages count in the right MM was found and fixed" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (28 commits) RDMA/hns: Move the location for initializing tmp_len RDMA/hns: Bugfix for cq record db for kernel IB/uverbs: Fix uverbs_attr_get_obj RDMA/qedr: Fix doorbell bar mapping for dpi > 1 IB/umem: Use the correct mm during ib_umem_release iw_cxgb4: Fix an error handling path in 'c4iw_get_dma_mr()' RDMA/i40iw: Avoid panic when reading back the IRQ affinity hint RDMA/i40iw: Avoid reference leaks when processing the AEQ RDMA/i40iw: Avoid panic when objects are being created and destroyed RDMA/hns: Fix the bug with NULL pointer RDMA/hns: Set NULL for __internal_mr RDMA/hns: Enable inner_pa_vld filed of mpt RDMA/hns: Set desc_dma_addr for zero when free cmq desc RDMA/hns: Fix the bug with rq sge RDMA/hns: Not support qp transition from reset to reset for hip06 RDMA/hns: Add return operation when configured global param fail RDMA/hns: Update convert function of endian format RDMA/hns: Load the RoCE dirver automatically RDMA/hns: Bugfix for rq record db for kernel RDMA/hns: Add rq inline flags judgement ...

net/9p: fix spelling mistake: "suspsend" -> "suspend"

2018-05-10T19:23:50+00:00

Trivial fix to spelling mistake in dev_warn message text Signed-off-by: Colin Ian King Signed-off-by: David S. Miller

net/9p: correct some comment errors in 9p file system code

2018-05-10T12:21:53+00:00

There are follow comment errors: 1 The function name is wrong in p9_release_pages() comment. 2 The function name and variable name is wrong in p9_poll_workfn() comment. 3 There is no variable dm_mr and lkey in struct p9_trans_rdma. 4 The function name is wrong in rdma_create_trans() comment. 5 There is no variable initialized in struct virtio_chan. 6 The variable name is wrong in p9_virtio_zc_request() comment. Signed-off-by: Sun Lianwen Reviewed-by: Randy Dunlap Reviewed-by: Randy Dunlap Signed-off-by: David S. Miller

IB: remove redundant INFINIBAND kconfig dependencies

2018-05-09T12:51:03+00:00

INFINIBAND_ADDR_TRANS depends on INFINIBAND. So there's no need for options which depend INFINIBAND_ADDR_TRANS to also depend on INFINIBAND. Remove the unnecessary INFINIBAND depends. Signed-off-by: Greg Thelen Signed-off-by: Doug Ledford

net/9p/client.c: fix potential refcnt problem of trans module

2018-04-06T04:36:23+00:00

When specifying trans_mod multiple times in a mount, it will cause an inaccurate refcount of the trans module. Also, in the error case of option parsing, we should put the trans module if we have already got it. Link: http://lkml.kernel.org/r/1522154942-57339-1-git-send-email-cgxu519@gmx.com Signed-off-by: Chengguang Xu Reviewed-by: Andrew Morton Cc: David Miller Cc: Eric Van Hensbergen Cc: Ron Minnich Cc: Latchesar Ionkov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

net/9p: avoid -ERESTARTSYS leak to userspace

2018-04-06T04:36:22+00:00

If it was interrupted by a signal, the 9p client may need to send some more requests to the server for cleanup before returning to userspace. To avoid such a last minute request to be interrupted right away, the client memorizes if a signal is pending, clears TIF_SIGPENDING, handles the request and calls recalc_sigpending() before returning. Unfortunately, if the transmission of this cleanup request fails for any reason, the transport returns an error and the client propagates it right away, without calling recalc_sigpending(). This ends up with -ERESTARTSYS from the initially interrupted request crawling up to syscall exit, with TIF_SIGPENDING cleared by the cleanup request. The specific signal handling code, which is responsible for converting -ERESTARTSYS to -EINTR is not called, and userspace receives the confusing errno value: open: Unknown error 512 (512) This is really hard to hit in real life. I discovered the issue while working on hot-unplug of a virtio-9p-pci device with an instrumented QEMU allowing to control request completion. Both p9_client_zc_rpc() and p9_client_rpc() functions have this buggy error path actually. Their code flow is a bit obscure and the best thing to do would probably be a full rewrite: to really ensure this situation of clearing TIF_SIGPENDING and returning -ERESTARTSYS can never happen. But given the general lack of interest for the 9p code, I won't risk breaking more things. So this patch simply fixes the buggy paths in both functions with a trivial label+goto. Thanks to Laurent Dufour for his help and suggestions on how to find the root cause and how to fix it. Link: http://lkml.kernel.org/r/152062809886.10599.7361006774123053312.stgit@bahia.lan Signed-off-by: Greg Kurz Reviewed-by: Andrew Morton Reviewed-by: Yiwen Jiang Cc: Eric Van Hensbergen Cc: Ron Minnich Cc: Latchesar Ionkov Cc: David Miller Cc: Laurent Dufour Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2018-02-15T22:29:27+00:00

Pull virtio fixes from Michael Tsirkin: "This includes a bugfix for virtio 9p fs. It also fixes hybernation for s390 guests with virtio devices" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio/s390: implement PM operations for virtio_ccw 9p/trans_virtio: discard zero-length reply

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03+00:00

This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^$[^\"]*$$\$/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro Signed-off-by: Linus Torvalds