Re: [PATCH] riscv: kgdb: Ensure that BUFMAX > NUMREGBYTES

[Paul Walmsley]

On Mon, 29 Sep 2025, Miquel Sabaté Solà wrote:

> Miquel Sabaté Solà @ 2025-09-15 16:32 +02:
> 
> > The current value of BUFMAX is similar as in other architectures, but as
> > per documentation on KGDB (see
> > 'Documentation/process/debugging/kgdb.rst'), BUFMAX has to be larger
> > than NUMREGBYTES.
> >
> > Some NUMREGBYTES architectures (e.g. powerpc or hexagon) actually define
> > BUFMAX in relation to NUMREGBYTES, and thus this condition is always
> > guaranteed. Since 2048 is a value that is generally accepted on all
> > architectures, and that is larger than the current value of NUMREGBYTES,
> > we can keep this value in arch/riscv, but we can at least add an
> > 'static_assert' as an extra measure just in case NUMREGBYTES changes in
> > the future for some unforseen reason.
> >
> > Signed-off-by: Miquel Sabaté Solà <mikisabate@xxxxxxxxx>

[ ... ]

> Gentle ping :)

Thanks, queued for early v6.18-rc.


- Paul