diff options
| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2021-10-06 01:55:27 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-10-07 19:52:58 +1100 |
| commit | e8278d44443207bb6609c7b064073f353e6f4978 (patch) | |
| tree | 713e6f43b5d3190d816ef8a3fef703db94f1b141 /arch | |
| parent | c9b8da77f22d28348d1f89a6c4d3fec102e9b1c4 (diff) | |
powerpc/bpf ppc32: Fix JMP32_JSET_K
'andi' only takes an unsigned 16-bit value. Correct the imm range used
when emitting andi.
Fixes: 51c66ad849a703 ("powerpc/bpf: Implement extended BPF on PPC32")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b94489f52831305ec15aca4dd04a3527236be7e8.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp32.c b/arch/powerpc/net/bpf_jit_comp32.c index 519ecb9ab672..7c65de9ed4fa 100644 --- a/arch/powerpc/net/bpf_jit_comp32.c +++ b/arch/powerpc/net/bpf_jit_comp32.c @@ -1075,7 +1075,7 @@ cond_branch: break; case BPF_JMP32 | BPF_JSET | BPF_K: /* andi does not sign-extend the immediate */ - if (imm >= -32768 && imm < 32768) { + if (imm >= 0 && imm < 32768) { /* PPC_ANDI is _only/always_ dot-form */ EMIT(PPC_RAW_ANDI(_R0, dst_reg, imm)); } else { |