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| author |   Akira Tsukamoto <akira.tsukamoto@gmail.com> | 2021-07-20 17:51:45 +0900 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2021-07-23 17:49:01 -0700 |
| commit | 22b5f16ffeff38938ad7420a2bfa3c281c36fd17 (patch) | |
| tree | bea1759072fae25d84958e39380549875bdbc553 /net/unix/af_unix.c | |
| parent | riscv: __asm_copy_to-from_user: Fix: overrun copy (diff) | |
| download | wireguard-linux-22b5f16ffeff38938ad7420a2bfa3c281c36fd17.tar.xz wireguard-linux-22b5f16ffeff38938ad7420a2bfa3c281c36fd17.zip | |
riscv: __asm_copy_to-from_user: Fix: fail on RV32
Had a bug when converting bytes to bits when the cpu was rv32.
The a3 contains the number of bytes and multiple of 8
would be the bits. The LGREG is holding 2 for RV32 and 3 for
RV32, so to achieve multiple of 8 it must always be constant 3.
The 2 was mistakenly used for rv32.
Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
Fixes: ca6eaaa210de ("riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions