OpenCloudOS-Kernel

Commit Graph

Author	SHA1	Message	Date
Gustavo A. R. Silva	208012f051	misc: bcm-vk: Replace zero-length array with flexible array member 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]. Also, make use of the struct_size() helper in kzalloc(). [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20210514230801.GA35863@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2021-05-21 22:03:29 +02:00
Scott Branden	111d746bb4	misc: bcm-vk: add VK messaging support Add message support in order to be able to communicate to VK card via message queues. This info is used for debug purposes via collection of logs via direct read of BAR space and by sysfs access (in a follow on commit). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-10-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2021-01-25 18:44:44 +01:00
Scott Branden	22c30607d1	misc: bcm-vk: add open/release Add open/release to replace private data with context for other methods to use. Reason for the context is because it is allowed for multiple sessions to open sysfs. For each file open, when upper layer queries the response, only those that are tied to a specified open should be returned. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-7-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2021-01-25 18:44:44 +01:00

Author

SHA1

Message

Date

Gustavo A. R. Silva

208012f051

misc: bcm-vk: Replace zero-length array with flexible array member

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].

Also, make use of the struct_size() helper in kzalloc().

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays

Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20210514230801.GA35863@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-05-21 22:03:29 +02:00

Scott Branden

111d746bb4

misc: bcm-vk: add VK messaging support

Add message support in order to be able to communicate
to VK card via message queues.

This info is used for debug purposes via collection of logs via direct
read of BAR space and by sysfs access (in a follow on commit).

Co-developed-by: Desmond Yan <desmond.yan@broadcom.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Desmond Yan <desmond.yan@broadcom.com>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Link: https://lore.kernel.org/r/20210120175827.14820-10-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-01-25 18:44:44 +01:00

Scott Branden

22c30607d1

misc: bcm-vk: add open/release

Add open/release to replace private data with context for other methods
to use.  Reason for the context is because it is allowed for multiple
sessions to open sysfs.  For each file open, when upper layer queries the
response, only those that are tied to a specified open should be returned.

Co-developed-by: Desmond Yan <desmond.yan@broadcom.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Desmond Yan <desmond.yan@broadcom.com>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Link: https://lore.kernel.org/r/20210120175827.14820-7-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-01-25 18:44:44 +01:00

3 Commits