[Kernel] Re: [PATCH OpenHarmony-4.19 04/17] selftests/bpf: add selftest part of "bpf: improve verifier branch analysis"

From: Ovidiu Panait <ovidiu.panait(a)windriver.com> stable inclusion from linux-4.19.193 commit c905bfe767e98a13dd886bf241ba9ee0640a53ff category: bugfix issue: #I42H19 CVE: NA -------------------------------- Backport the missing selftest part of commit 7da6cd690c43 ("bpf: improve verifier branch analysis") in order to fix the following test_verifier failures: ... Unexpected success to load! 0: (b7) r0 = 0 1: (75) if r0 s>= 0x0 goto pc+1 3: (95) exit processed 3 insns (limit 131072), stack depth 0 Unexpected success to load! 0: (b7) r0 = 0 1: (75) if r0 s>= 0x0 goto pc+1 3: (95) exit processed 3 insns (limit 131072), stack depth 0 ... The changesets apply with a minor context difference. Fixes: 7da6cd690c43 ("bpf: improve verifier branch analysis") Signed-off-by: Ovidiu Panait <ovidiu.panait(a)windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Signed-off-by: Yu Changchun <yuchangchun1(a)huawei.com> ---