kernel/linux.git/drivers/misc/genwqe/card_dev.c, branch linux-4.3.y

mm: mark most vm_operations_struct const

2015-09-10T20:29:01+00:00

With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct structs should be constant. Signed-off-by: Kirill A. Shutemov Reviewed-by: Oleg Nesterov Cc: "H. Peter Anvin" Cc: Andy Lutomirski Cc: Dave Hansen Cc: Ingo Molnar Cc: Minchan Kim Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

assorted conversions to %p[dD]

2014-11-19T18:01:20+00:00

Signed-off-by: Al Viro

GenWQE: Support blocking when DDCB queue is busy

2014-09-24T06:15:47+00:00

When the GenWQE hardware queue was busy, the driver returned simply -EBUSY. This caused polling by applications which increased the load on the already busy system. This change implements the possiblity to sleep on a waitqueue instead when the DDCB queue is busy. The requestor is woken up when there is free space on the queue again. The old way to get -EBUSY is still available if the device is openend with O_NONBLOCKING. The default is now blocking behavior. Signed-off-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

GenWQE: Fix checkpatch complaints

2014-09-24T06:15:47+00:00

The checkpatch.pl script got improved. I ran it on the latest GenWQE sources and fixed what it complained about. Signed-off-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

GenWQE: Update author information

2014-09-24T06:15:46+00:00

Updated email address of co-author. Signed-off-by: Frank Haverkamp Signed-off-by: Michael Jung Signed-off-by: Greg Kroah-Hartman

GenWQE: Add support for EEH error recovery

2014-07-09T21:14:27+00:00

This patch implements the callbacks and functions necessary to have EEH recovery support. It adds a config option to enable or disable explicit calls to trigger platform specific mechanisms on error recovery paths. This option is enabled by default only on PPC64 systems and can be overritten via debugfs. If this option is enabled, on the error recovery path the driver will call pci_channel_offline() to check for error condition and issue non-raw MMIO reads to trigger early EEH detection in case of hardware failures. This is necessary since the driver MMIO helper funtions use raw accessors. Signed-off-by: Kleber Sacilotto de Souza Acked-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

GenWQE: Fix multithreading problems

2014-04-16T19:12:39+00:00

When being used in a multithreaded application there were problems with memory pages/cachelines accessed by multiple threads/cpus at the same time, while doing DMA transfers to/from those. To avoid such situations this fix is creating a copy of the first and the last page if it is not fully used. The data is copied from user-space into those pages and results are copied back when the DDCB-request is successfully finished. Signed-off-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

GenWQE: Enable access to VPD flash area

2014-04-16T19:12:38+00:00

In addition to the two flash partitions we used so far, there is a 3rd one which is enabled for usage by this fix. Signed-off-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

misc: genwqe: Fix potential memory leak when pinning memory

2014-02-07T23:24:31+00:00

Fix a memory leak in the genwqe_pin_mem() error path as called by ioctl GENWQE_PIN_MEM. In case there is an error encountered when mapping memory, the already allocated dma_mapping struct needs to be freed correctly. Detected by Coverity: CID 1162606. Signed-off-by: Christian Engelmayer Acked-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman

misc: genwqe: fix return value check in genwqe_device_create()

2014-01-08T23:22:49+00:00

In case of error, the function device_create_with_groups() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun Acked-by: Frank Haverkamp Signed-off-by: Greg Kroah-Hartman