Commit Graph

6 Commits

Author SHA1 Message Date
Gustavo A. R. Silva
5224f79096 treewide: Replace zero-length arrays with flexible-array members
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].

This code was transformed with the help of Coccinelle:
(next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch)

@@
identifier S, member, array;
type T1, T2;
@@

struct S {
  ...
  T1 member;
  T2 array[
- 0
  ];
};

UAPI and wireless changes were intentionally excluded from this patch
and will be sent out separately.

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2022-02-17 07:00:39 -06:00
James Smart
388f36edec scsi: elx: libefc_sli: APIs to setup SLI library
Add APIs to initialize the library, initialize the SLI Port, reset
firmware, terminate the SLI Port, and terminate the library.

Link: https://lore.kernel.org/r/20210601235512.20104-8-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:29 -04:00
James Smart
7c5b76831e scsi: elx: libefc_sli: Queue create/destroy/parse routines
Add service routines to create mailbox commands and add APIs to
create/destroy/parse SLI-4 EQ, CQ, RQ and MQ queues.

Link: https://lore.kernel.org/r/20210601235512.20104-5-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:29 -04:00
James Smart
18be69fa34 scsi: elx: libefc_sli: Data structures and defines for mbox commands
Add definitions for SLI-4 mailbox commands and responses.

Link: https://lore.kernel.org/r/20210601235512.20104-4-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:29 -04:00
James Smart
216fc0b4b2 scsi: elx: libefc_sli: SLI Descriptors and Queue entries
Continue the libefc_sli SLI-4 library population.

Add SLI-4 Data structures and defines for:

 - Buffer Descriptors (BDEs)

 - Scatter/Gather List elements (SGEs)

 - Queues and their Entry Descriptions for: Event Queues (EQs), Completion
   Queues (CQs), Receive Queues (RQs), and the Mailbox Queue (MQ).

Link: https://lore.kernel.org/r/20210601235512.20104-3-jsmart2021@gmail.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:28 -04:00
James Smart
edba59f3cd scsi: elx: libefc_sli: SLI-4 register offsets and field definitions
This is the initial patch for the new Emulex target mode SCSI driver.

 - Create the new Emulex source level directory drivers/scsi/elx and add
   the directory to the MAINTAINERS file.

 - Create the first library subdirectory drivers/scsi/elx/libefc_sli.  This
   library is a SLI-4 interface library.

 - Start the population of the libefc_sli library with definitions of SLI-4
   hardware register offsets and definitions.

Link: https://lore.kernel.org/r/20210601235512.20104-2-jsmart2021@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-15 23:39:28 -04:00