efi/libstub: Move efi_random_alloc() into separate source file

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efi_random_alloc() is only used on arm64, but as it shares a source
file with efi_random_get_seed(), the latter will pull in the former
on other architectures as well.

Let's take advantage of the fact that libstub is a static library,
and so the linker will only incorporate objects that are needed to
satisfy dependencies in other objects. This means we can move the
random alloc code to a separate source file that gets built
unconditionally, but only used when needed.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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This commit is contained in:

Ard Biesheuvel 2020-02-10 17:02:41 +01:00

parent 1e45bf7372

commit 0ed02bdaa7

3 changed files with 125 additions and 115 deletions

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2

drivers/firmware/efi/libstub/Makefile

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114

drivers/firmware/efi/libstub/random.c

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124

drivers/firmware/efi/libstub/randomalloc.c

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