[PATCH] riscv: lib: Fix ZBB strnlen reading past count boundary

patchwork-bot+linux-riscv at kernel.org patchwork-bot+linux-riscv at kernel.org
Sat Aug 8 11:00:05 PDT 2026


Hello:

This patch was applied to riscv/linux.git (fixes)
by Paul Walmsley <pjw at kernel.org>:

On Mon, 13 Apr 2026 01:07:38 +0000 you wrote:
> The ZBB-optimized strnlen loop loads one word ahead before checking the
> aligned boundary:
> 
>     REG_L   t1, SZREG(t0)       // load next word
>     addi    t0, t0, SZREG       // advance
>     orc.b   t1, t1
>     bgeu    t0, t4, 4f          // boundary check AFTER load
> 
> [...]

Here is the summary with links:
  - riscv: lib: Fix ZBB strnlen reading past count boundary
    https://git.kernel.org/riscv/c/5d588c684833

You are awesome, thank you!
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