powerpc64/bpf: Store temp registers' bpf to ppc mapping

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In bpf_jit_build_body(), the mapping of TMP_REG_1 and TMP_REG_2's bpf
register to ppc register is evalulated at every use despite not
changing. Instead, determine the ppc register once and store the result.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
[Rebased, converted additional usage sites]
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/0944e2f0fa6dd254ea401f1c946fb6c9a5294278.1644834730.git.naveen.n.rao@linux.vnet.ibm.com

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Jordan Niethe 2022-02-14 16:11:50 +05:30 • committed by Michael Ellerman

parent 036d559c0b

commit 3a3fc9bf10

1 changed files with 86 additions and 111 deletions

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arch/powerpc/net/bpf_jit_comp64.c

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