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net: wifi_mgmt: reduce struct wifi_scan_params size #62735

Merged
merged 3 commits into from
Sep 25, 2023
Merged

net: wifi_mgmt: reduce struct wifi_scan_params size #62735

merged 3 commits into from
Sep 25, 2023

Commits on Sep 21, 2023

  1. net: wifi_mgmt: avoid declaring zero length array 

    Zero length arrays are a GNUism not supported by all compilers. If
`zephyr/net/wifi_mgmt.h` is included by an application without WiFi
enabled, ensure array is at least one element long.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
    Jordan Yates committed Sep 21, 2023
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  2. net: wifi_mgmt: make number of scan channels configurable 

    Make the maximum number of channels that can be manually scanned
configurable by the application. The previous value of 233 was vastly
overallocating memory as the largest band only contains 60 allocated
channels.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
    Jordan Yates committed Sep 21, 2023
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  3. net: wifi_mgmt: linearise scan_params->chan arrays 

    Turn the nested arrays of `scan_params->chan` into a single array.
This adds the requirement to specify the band for each channel, but
eliminates the large amount of dead memory for unused bands. Overall,
this saves 50% of the RAM space for this variable.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
    Jordan Yates committed Sep 21, 2023
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