powerpc/64: remove support for kernel-mode syscalls

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There is support for the kernel to execute the 'sc 0' instruction and
make a system call to itself. This is a relic that is unused in the
tree, therefore untested. It's also highly questionable for modules to
be doing this.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190827033010.28090-3-npiggin@gmail.com

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Nicholas Piggin 2019-08-27 13:30:07 +10:00 • committed by Michael Ellerman

parent facd04a904

commit 555e28179d

2 changed files with 6 additions and 17 deletions

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21

arch/powerpc/kernel/entry_64.S

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2

arch/powerpc/kernel/exceptions-64s.S

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