kernel/linux.git/drivers/s390/net, branch v6.3

s390/qeth: Convert sprintf/snprintf to scnprintf

2023-02-11T03:49:53+00:00

This LWN article explains the rationale for this change https: //lwn.net/Articles/69419/ Ie. snprintf() returns what *would* be the resulting length, while scnprintf() returns the actual length. Reported-by: Jules Irenge Reviewed-by: Alexandra Winter Signed-off-by: Thorsten Winkler Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski

s390/qeth: Convert sysfs sprintf to sysfs_emit

2023-02-11T03:49:53+00:00

Following the advice of the Documentation/filesystems/sysfs.rst. All sysfs related show()-functions should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Reported-by: Jules Irenge Reported-by: Joe Perches Reviewed-by: Alexandra Winter Signed-off-by: Thorsten Winkler Signed-off-by: Alexandra Winter Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski

s390/qeth: Use constant for IP address buffers

2023-02-11T03:49:53+00:00

Use INET6_ADDRSTRLEN constant with size of 48 which be used for char arrays storing ip addresses (for IPv4 and IPv6) Reviewed-by: Alexandra Winter Signed-off-by: Thorsten Winkler Signed-off-by: Alexandra Winter Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski

s390/ctcm: cleanup indenting

2023-02-11T03:49:53+00:00

Get rid of multiple smatch warnings, like: warn: inconsistent indenting Reviewed-by: Simon Horman Signed-off-by: Alexandra Winter Signed-off-by: Jakub Kicinski

net/smc: De-tangle ism and smc device initialization

2023-01-25T09:46:49+00:00

The struct device for ISM devices was part of struct smcd_dev. Move to struct ism_dev, provide a new API call in struct smcd_ops, and convert existing SMCD code accordingly. Furthermore, remove struct smcd_dev from struct ism_dev. This is the final part of a bigger overhaul of the interfaces between SMC and ISM. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller

s390/ism: Consolidate SMC-D-related code

2023-01-25T09:46:49+00:00

The ism module had SMC-D-specific code sprinkled across the entire module. We are now consolidating the SMC-D-specific parts into the latter parts of the module, so it becomes more clear what code is intended for use with ISM, and which parts are glue code for usage in the context of SMC-D. This is the fourth part of a bigger overhaul of the interfaces between SMC and ISM. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller

net/smc: Separate SMC-D and ISM APIs

2023-01-25T09:46:48+00:00

We separate the code implementing the struct smcd_ops API in the ISM device driver from the functions that may be used by other exploiters of ISM devices. Note: We start out small, and don't offer the whole breadth of the ISM device for public use, as many functions are specific to or likely only ever used in the context of SMC-D. This is the third part of a bigger overhaul of the interfaces between SMC and ISM. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller

net/smc: Register SMC-D as ISM client

2023-01-25T09:46:48+00:00

Register the smc module with the new ism device driver API. This is the second part of a bigger overhaul of the interfaces between SMC and ISM. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller

net/ism: Add new API for client registration

2023-01-25T09:46:48+00:00

Add a new API that allows other drivers to concurrently access ISM devices. To do so, we introduce a new API that allows other modules to register for ISM device usage. Furthermore, we move the GID to struct ism, where it belongs conceptually, and rename and relocate struct smcd_event to struct ism_event. This is the first part of a bigger overhaul of the interfaces between SMC and ISM. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller

s390/ism: Introduce struct ism_dmb

2023-01-25T09:46:48+00:00

Conceptually, a DMB is a structure that belongs to ISM devices. However, SMC currently 'owns' this structure. So future exploiters of ISM devices would be forced to include SMC headers to work - which is just weird. Therefore, we switch ISM to struct ism_dmb, introduce a new public header with the definition (will be populated with further API calls later on), and, add a thin wrapper to please SMC. Since structs smcd_dmb and ism_dmb are identical, we can simply convert between the two for now. Signed-off-by: Stefan Raspl Signed-off-by: Jan Karcher Signed-off-by: Wenjia Zhang Signed-off-by: David S. Miller