ld.lld: error: duplicate symbol: hmac_sha256
>>> defined at rpmb-mtk.c:211 (/home/federico/Projects/android_kernel_samsung_a34x/out/../drivers/char/rpmb/rpmb-mtk.c:211)
>>> drivers/char/rpmb/rpmb-mtk.o:(hmac_sha256) in archive built-in.a
>>> defined at sha256.c:136 (/home/federico/Projects/android_kernel_samsung_a34x/out/../drivers/misc/mediatek/connectivity/wlan/core/gen4m/wpa_supp/src/crypto/sha256.c:136)
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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.
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