wireguard-linux/drivers/misc/cxl, branch jd/orphan-parallel

cxl: Rework error message for incompatible slots

2020-08-24T15:31:32Z

Improve the error message shown if a capi adapter is plugged on a capi-incompatible slot directly under the PHB (no intermediate switch). Fixes: 5632874311db ("cxl: Add support for POWER9 DD2") Cc: stable@vger.kernel.org # 4.14+ Signed-off-by: Frederic Barrat Reviewed-by: Andrew Donnellan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200407115601.25453-1-fbarrat@linux.ibm.com

cxl: Change PCIBIOS_SUCCESSFUL to 0

2020-07-13T13:39:52Z

In reference to the PCI spec (Chapter 2), PCIBIOS* is an x86 concept. There scope should be limited within arch/x86. Change all PCIBIOS_SUCCESSFUL to 0 Signed-off-by: "Saheed O. Bolarinwa" Link: https://lore.kernel.org/r/20200713122247.10985-14-refactormyself@gmail.com Signed-off-by: Greg Kroah-Hartman

misc: cxl: flash: Remove unused variable 'drc_index'

2020-07-10T12:55:24Z

Keeping the pointer increment though. Fixes the following W=1 kernel build warning: drivers/misc/cxl/flash.c: In function ‘update_devicetree’: drivers/misc/cxl/flash.c:178:16: warning: variable ‘drc_index’ set but not used [-Wunused-but-set-variable] 178 | __be32 *data, drc_index, phandle; | ^~~~~~~~~ Cc: Frederic Barrat Cc: Andrew Donnellan Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Lee Jones Acked-by: Andrew Donnellan Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20200709065651.GY3500@dell Signed-off-by: Greg Kroah-Hartman

misc: cxl: hcalls: Demote half-assed kerneldoc attempt

2020-07-01T13:08:05Z

Function headers will need a lot of work before they reach the standards expected of kerneldoc. Demote them down to basic comments/headers, for now at least. Fixes the following W=1 kernel build warnings: drivers/misc/cxl/hcalls.c:175: warning: Function parameter or member 'unit_address' not described in 'cxl_h_detach_process' drivers/misc/cxl/hcalls.c:175: warning: Function parameter or member 'process_token' not described in 'cxl_h_detach_process' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'op' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p1' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p2' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p3' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'p4' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:207: warning: Function parameter or member 'out' not described in 'cxl_h_control_function' drivers/misc/cxl/hcalls.c:245: warning: Function parameter or member 'unit_address' not described in 'cxl_h_reset_afu' drivers/misc/cxl/hcalls.c:258: warning: Function parameter or member 'unit_address' not described in 'cxl_h_suspend_process' drivers/misc/cxl/hcalls.c:258: warning: Function parameter or member 'process_token' not described in 'cxl_h_suspend_process' drivers/misc/cxl/hcalls.c:271: warning: Function parameter or member 'unit_address' not described in 'cxl_h_resume_process' drivers/misc/cxl/hcalls.c:271: warning: Function parameter or member 'process_token' not described in 'cxl_h_resume_process' drivers/misc/cxl/hcalls.c:284: warning: Function parameter or member 'unit_address' not described in 'cxl_h_read_error_state' drivers/misc/cxl/hcalls.c:284: warning: Function parameter or member 'state' not described in 'cxl_h_read_error_state' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'offset' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'buf_address' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:300: warning: Function parameter or member 'len' not described in 'cxl_h_get_afu_err' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'cr_num' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'offset' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'buf_address' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:320: warning: Function parameter or member 'len' not described in 'cxl_h_get_config' drivers/misc/cxl/hcalls.c:333: warning: Function parameter or member 'unit_address' not described in 'cxl_h_terminate_process' drivers/misc/cxl/hcalls.c:333: warning: Function parameter or member 'process_token' not described in 'cxl_h_terminate_process' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'record' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'list_address' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'num' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:351: warning: Function parameter or member 'out' not described in 'cxl_h_collect_vpd' drivers/misc/cxl/hcalls.c:362: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_fn_error_interrupt' drivers/misc/cxl/hcalls.c:362: warning: Function parameter or member 'reg' not described in 'cxl_h_get_fn_error_interrupt' drivers/misc/cxl/hcalls.c:374: warning: Function parameter or member 'unit_address' not described in 'cxl_h_ack_fn_error_interrupt' drivers/misc/cxl/hcalls.c:374: warning: Function parameter or member 'value' not described in 'cxl_h_ack_fn_error_interrupt' drivers/misc/cxl/hcalls.c:386: warning: Function parameter or member 'unit_address' not described in 'cxl_h_get_error_log' drivers/misc/cxl/hcalls.c:386: warning: Function parameter or member 'value' not described in 'cxl_h_get_error_log' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'process_token' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:399: warning: Function parameter or member 'info' not described in 'cxl_h_collect_int_info' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'process_token' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'control_mask' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:440: warning: Function parameter or member 'reset_mask' not described in 'cxl_h_control_faults' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'unit_address' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'op' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p1' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p2' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p3' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'p4' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:480: warning: Function parameter or member 'out' not described in 'cxl_h_control_facility' drivers/misc/cxl/hcalls.c:516: warning: Function parameter or member 'unit_address' not described in 'cxl_h_reset_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'unit_address' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'list_address' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'num' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:532: warning: Function parameter or member 'out' not described in 'cxl_h_collect_vpd_adapter' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'unit_address' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'op' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'list_address' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'num' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:561: warning: Function parameter or member 'out' not described in 'cxl_h_download_facility' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'unit_address' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'list_address' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'num' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:626: warning: Function parameter or member 'out' not described in 'cxl_h_download_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'unit_address' not described in 'cxl_h_validate_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'list_address' not described in 'cxl_h_validate_adapter_image' drivers/misc/cxl/hcalls.c:639: warning: Function parameter or member 'num' not described in 'cxl_h_validate_adapter_image' Cc: Frederic Barrat Cc: Andrew Donnellan Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20200701083118.45744-28-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman

cxl: Fix kobject memleak

2020-06-29T16:12:53Z

Currently the error return path from kobject_init_and_add() is not followed by a call to kobject_put() - which means we are leaking the kobject. Fix it by adding a call to kobject_put() in the error path of kobject_init_and_add(). Fixes: b087e6190ddc ("cxl: Export optional AFU configuration record in sysfs") Reported-by: Hulk Robot Signed-off-by: Wang Hai Acked-by: Andrew Donnellan Acked-by: Frederic Barrat Link: https://lore.kernel.org/r/20200602120733.5943-1-wanghai38@huawei.com Signed-off-by: Greg Kroah-Hartman

mmap locking API: convert mmap_sem comments

2020-06-09T16:39:14Z

Convert comments that reference mmap_sem to reference mmap_lock instead. [akpm@linux-foundation.org: fix up linux-next leftovers] [akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil] [akpm@linux-foundation.org: more linux-next fixups, per Michel] Signed-off-by: Michel Lespinasse Signed-off-by: Andrew Morton Reviewed-by: Vlastimil Babka Reviewed-by: Daniel Jordan Cc: Davidlohr Bueso Cc: David Rientjes Cc: Hugh Dickins Cc: Jason Gunthorpe Cc: Jerome Glisse Cc: John Hubbard Cc: Laurent Dufour Cc: Liam Howlett Cc: Matthew Wilcox Cc: Peter Zijlstra Cc: Ying Han Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com Signed-off-by: Linus Torvalds

mmap locking API: use coccinelle to convert mmap_sem rwsem call sites

2020-06-09T16:39:14Z

This change converts the existing mmap_sem rwsem calls to use the new mmap locking API instead. The change is generated using coccinelle with the following rule: // spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir . @@ expression mm; @@ ( -init_rwsem +mmap_init_lock | -down_write +mmap_write_lock | -down_write_killable +mmap_write_lock_killable | -down_write_trylock +mmap_write_trylock | -up_write +mmap_write_unlock | -downgrade_write +mmap_write_downgrade | -down_read +mmap_read_lock | -down_read_killable +mmap_read_lock_killable | -down_read_trylock +mmap_read_trylock | -up_read +mmap_read_unlock ) -(&mm->mmap_sem) +(mm) Signed-off-by: Michel Lespinasse Signed-off-by: Andrew Morton Reviewed-by: Daniel Jordan Reviewed-by: Laurent Dufour Reviewed-by: Vlastimil Babka Cc: Davidlohr Bueso Cc: David Rientjes Cc: Hugh Dickins Cc: Jason Gunthorpe Cc: Jerome Glisse Cc: John Hubbard Cc: Liam Howlett Cc: Matthew Wilcox Cc: Peter Zijlstra Cc: Ying Han Link: http://lkml.kernel.org/r/20200520052908.204642-5-walken@google.com Signed-off-by: Linus Torvalds

cxl: Remove dead Kconfig options

2020-06-02T10:59:21Z

The CXL_AFU_DRIVER_OPS and CXL_LIB Kconfig options were added to coordinate merging of new features. They no longer serve any purpose, so remove them. Signed-off-by: Andrew Donnellan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200602040341.10152-1-ajd@linux.ibm.com

misc: cxl: use mmgrab

2020-01-14T14:16:50Z

Mmgrab was introduced in commit f1f1007644ff ("mm: add new mmgrab() helper") and most of the kernel was updated to use it. Update a remaining file. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) @@ expression e; @@ - atomic_inc(&e->mm_count); + mmgrab(e); Signed-off-by: Julia Lawall Acked-by: Andrew Donnellan Link: https://lore.kernel.org/r/1577634178-22530-2-git-send-email-Julia.Lawall@inria.fr Signed-off-by: Greg Kroah-Hartman

compat_ioctl: use correct compat_ptr() translation in drivers

2019-10-23T15:23:44Z

A handful of drivers all have a trivial wrapper around their ioctl handler, but don't call the compat_ptr() conversion function at the moment. In practice this does not matter, since none of them are used on the s390 architecture and for all other architectures, compat_ptr() does not do anything, but using the new compat_ptr_ioctl() helper makes it more correct in theory, and simplifies the code. I checked that all ioctl handlers in these files are compatible and take either pointer arguments or no argument. Acked-by: Al Viro Acked-by: Greg Kroah-Hartman Acked-by: Andrew Donnellan Acked-by: Felipe Balbi Signed-off-by: Arnd Bergmann