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| author | Johan Almbladh <johan.almbladh@anyfinetworks.com> | 2026-09-23 12:51:58 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-24 01:57:52 +0000 |
| commit | 8110ba09777873443db286b3cbb89b0e6311c554 (patch) | |
| tree | ce57e0144d7500f4dd93ccd2c5b2cf96b0c5e8af /tools/perf/scripts/python/stackcollapse.py | |
| parent | db762fd96be225bd06161c9631160c755d891693 (diff) | |
| download | linux-next-8110ba09777873443db286b3cbb89b0e6311c554.tar.gz linux-next-8110ba09777873443db286b3cbb89b0e6311c554.zip | |
bpf: Fix BSWAP 32 and 16 on MIPS64
The 16/32-bit byteswap implementations for MIPS64r1 and earlier do
not have an explicit zero extension afterwards. The input is first
sign-extended to 64 bits, and the byteswap sequence can then leave
the result sign-extended depending on the value of the low bits.
Add the missing zero-extension.
Found with test_bpf on MIPS64r1 emulated by QEMU.
Fixes: fbc802de6b10 ("mips, bpf: Add new eBPF JIT for 64-bit MIPS")
Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://patch.msgid.link/20260923105158.3514342-2-johan.almbladh@anyfinetworks.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions