linux/drivers/misc, branch v4.3

Merge tag 'powerpc-4.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2015-10-16T19:07:43Z

Pull powerpc fixes from Michael Ellerman: - Re-enable CONFIG_SCSI_DH in our defconfigs - Remove unused os_area_db_id_video_mode - cxl: fix leak of IRQ names in cxl_free_afu_irqs() from Andrew - cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API from Andrew - cxl: fix leak of ctx->mapping when releasing kernel API contexts from Andrew - cxl: Workaround malformed pcie packets on some cards from Philippe - cxl: Fix number of allocated pages in SPA from Christophe Lombard - Fix checkstop in native_hpte_clear() with lockdep from Cyril - Panic on unhandled Machine Check on powernv from Daniel - selftests/powerpc: Fix build failure of load_unaligned_zeropad test * tag 'powerpc-4.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Fix build failure of load_unaligned_zeropad test powerpc/powernv: Panic on unhandled Machine Check powerpc: Fix checkstop in native_hpte_clear() with lockdep cxl: Fix number of allocated pages in SPA cxl: Workaround malformed pcie packets on some cards cxl: fix leak of ctx->mapping when releasing kernel API contexts cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API cxl: fix leak of IRQ names in cxl_free_afu_irqs() powerpc/ps3: Remove unused os_area_db_id_video_mode powerpc/configs: Re-enable CONFIG_SCSI_DH

cxl: Fix number of allocated pages in SPA

2015-10-07T05:44:46Z

The scheduled process area is currently allocated before assigning the correct maximum processes to the AFU, which will mean we only ever allocate a fixed number of pages for the scheduled process area. This will limit us to 958 processes with 2 x 64K pages. If we try to use more processes than that we'd probably overrun the buffer and corrupt memory or crash. AFUs that require three or more interrupts per process will not be affected as they are already limited to less processes than that, but we could hit it on an AFU that requires 0, 1 or 2 interrupts per process, or when using 4K pages. This patch moves the initialisation of the num_procs to before the SPA allocation so that enough pages will be allocated for the number of processes that the AFU supports. Signed-off-by: Christophe Lombard Signed-off-by: Ian Munsie Cc: # 3.18+ Signed-off-by: Michael Ellerman

cxl: Workaround malformed pcie packets on some cards

2015-10-06T09:59:46Z

This works around a pcie host bridge defect on some cards, that can cause malformed Transaction Layer Packet (TLP) errors to be erroneously reported. The upper nibble of the vendor section PSL revision is used to distinguish between different cards. The affected ones have it set to 0. Signed-off-by: Philippe Bergheaud Acked-by: Ian Munsie Signed-off-by: Michael Ellerman

mei: hbm: fix error in state check logic

2015-10-04T11:19:23Z

Use || instead && in state check. The latter is bogus and leads to following warning: drivers/misc/mei/hbm.c:1212:46: warning: logical ‘and’ of mutually exclusive tests is always false [-Wlogical-op] Fixes: 70ef835c84b3 ("mei: support for dynamic clients") Reported-by: David Binderman Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

cxl: fix leak of ctx->mapping when releasing kernel API contexts

2015-10-01T01:50:12Z

When a context is created via the kernel API, ctx->mapping is allocated within the kernel and thus needs to be freed when the context is freed. reclaim_ctx() attempts to do this for contexts with the ctx->kernelapi flag set, but afu_release() (which can be called from the kernel API through cxl_fd_release()) sets ctx->mapping to NULL before calling cxl_context_free() to free the context. Add a check to afu_release() so that the mappings in contexts created via the kernel API are left alone so reclaim_ctx() can free them. Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Acked-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman

cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API

2015-10-01T01:49:32Z

At present, ctx->irq_bitmap is freed in afu_release_irqs(), which is called from afu_release() via cxl_context_detach(). Move the freeing of ctx->irq_bitmap from afu_release_irqs() to reclaim_ctx() (called through cxl_context_free()) so it's freed when releasing a context via the kernel API (cxl_release_context()) or the userspace API (afu_release()). Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Acked-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman

cxl: fix leak of IRQ names in cxl_free_afu_irqs()

2015-10-01T01:49:32Z

cxl_free_afu_irqs() doesn't free IRQ names when it releases an AFU's IRQ ranges. The userspace API equivalent in afu_release_irqs() calls afu_irq_name_free() to release the IRQ names. Call afu_irq_name_free() in cxl_free_afu_irqs() to release the IRQ names. Make afu_irq_name_free() non-static to allow this. Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Signed-off-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman

Merge tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2015-09-27T00:53:15Z

Pull char/misc driver fixes from Greg KH: "Here's some tiny char and misc driver fixes that resolve some reported errors for 4.3-rc3. All of these have been in linux-next with no problems for a while" * tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: extcon: Fix attached value returned by is_extcon_changed Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc mei: fix debugfs files leak on error path thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller

cxl: Fix lockdep warning while creating afu_err_buff attribute

2015-09-23T10:57:13Z

Presently a lockdep warning is reported during creation of afu_err_buff bin_attribute for the afu. This is caused due to the variable attr.key not pointing to a static class key, hence the function lockdep_init_map reports this warning: BUG: key not in .data! The patch fixes this issue by calling sysfs_attr_init on the attr_eb.attr structure before populating it with the afu_err_buff file details. This will populate the attr.key variable with a static class key so that lockdep_init_map stops complaining about the lockdep key not being static. Reported-by: Daniel Axtens Signed-off-by: Vaibhav Jain Acked-by: Ian Munsie Reviewed-by: Daniel Axtens Signed-off-by: Michael Ellerman

mei: fix debugfs files leak on error path

2015-09-21T05:44:51Z

if dbgfs_dir is not set then debugfs_remove_recursive is not called on the error path Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman