powerpc64/bpf: Do not save/restore LR on each call to bpf_stf_barrier()

Browse source

Instead of saving and restoring LR before each invocation to
bpf_stf_barrier(), set SEEN_FUNC flag so that we save/restore LR in
prologue/epilogue.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4446f25478d82a2a4ac9dab2ebdfd88ddf923eb7.1644834730.git.naveen.n.rao@linux.vnet.ibm.com

...

This commit is contained in:

Naveen N. Rao 2022-02-14 16:11:38 +05:30 • committed by Michael Ellerman

parent 0ffdbce6f4

commit c2067f7f88

1 changed files with 1 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

arch/powerpc/net/bpf_jit_comp64.c

View file