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SDIO/SPI probes functions automatically add a default wlan interface on top of registered wiphy, through wilc_cfg80211_init which in turn calls wilc_netdev_ifc_init. However, bus is still not fully initialized when we register corresponding net device (for example we still miss some private driver data pointers), which for example makes it impossible to retrieve MAC address from chip (which is supposed to be set on net device before its registration) before registering net device. More generally, net device registration should not be done until driver has fully initialized everything and is ready to handle any operation on the net device. Prevent net device from being registered so early by doing it at the end of probe functions. Apply this logic to both sdio and spi buses. Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://msgid.link/20240514-mac_addr_at_probe-v2-2-afef09f1cd10@bootlin.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.