kernel/drivers/misc/mei/interrupt.c, branch linux-4.1.y

mei: use mei_cl_is_connected consistently

2015-04-03T14:18:56Z

Replace open coded check for cl->state !=/== MEI_FILE_CONNECTED with mei_cl_is_connected function. Note that cl->state != MEI_FILE_CONNECTED is not the same as cl->state == MEI_FILE_DISCONNECTED Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: allow read concurrency

2015-03-02T03:37:00Z

Replace clunky read state machine with read stack implemented as per client read list, this is important mostly for mei drivers with unsolicited reads Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: simplify io callback disposal

2015-03-02T03:37:00Z

Simplify disposal of io callback by removing the callback implicitly from its lookup list inside mei_io_cb_free Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: use only one buffer in callback

2015-03-02T03:37:00Z

The callback structure is used exclusively for reading or writing therefore there is no reason to hold both response and request buffers in the callback structure Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: iamthif: use regular client read functions

2015-03-02T03:37:00Z

Reduce code duplication in amthif by reusing regular client read functions. The change also removes the need for amthif own buffering Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: iamthif: send flow control as a regular client

2015-03-02T03:37:00Z

Reuse common client mechanism for sending flow control hbm message. Add new function mei_amthif_read_start similar to mei_cl_read_start that puts control flow request onto the control write queue and drop mei_amthif_irq_read function Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: iamthif: remove useless iamthif_ioctl variable

2015-03-02T03:37:00Z

iamthif_ioctl is obsolete and can be safely dropped Currently it is set to true during driver runtime Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: iamthif: fix device reset on mei_amthif_irq_read_msg

2015-03-02T03:37:00Z

On failure mei_amthif_irq_read_msg returns an error that will cause device reset but the issue is software one so instead we should propagate error to caller and just clean the read queues. As a side effect also removes useless BUG_ONs Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix device reset on mei_cl_irq_read_msg allocation failure

2015-03-02T03:36:59Z

On memory allocation failure mei_cl_irq_read_msg will return with error that will cause device reset. Instead we should propagate error to caller and just clean the read queues. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: drop unneeded client NULL check in cb structure

2014-11-03T23:52:48Z

The pointer to client in the callback structure (cb->cl) can't be NULL with current locking. We can drop check and warnings as in some cases this just uselessly complicates the code flow. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman