Re: [PATCH] RISC-V: Fix unannoted hardirqs-on in return to userspace slow-path

Palmer Dabbelt
2022-12-08T23:43:44Z

On Fri, 11 Nov 2022 17:31:08 -0500, Andrew Bresticker wrote:
> The return to userspace path in entry.S may enable interrupts without the
> corresponding lockdep annotation, producing a splat[0] when DEBUG_LOCKDEP
> is enabled. Simply calling __trace_hardirqs_on() here gets a bit messy
> due to the use of RA to point back to ret_from_exception, so just move
> the whole slow-path loop into C. It's more readable and it lets us use
> local_irq_{enable,disable}(), avoiding the need for manual annotations
> altogether.
>
> [...]

Applied, thanks!

[1/1] RISC-V: Fix unannoted hardirqs-on in return to userspace slow-path
https://git.kernel.org/palmer/c/e1ceb0964163

Best regards,
--
Palmer Dabbelt <palmer@rivosinc.com>