On Tue, Jun 11, 2024 at 01:35:33PM +0200, Christian Marangi wrote:
> It was discovered that some device have CBR address set to 0 causing
> kernel panic when arch_sync_dma_for_cpu_all is called.
>
> This was notice in situation where the system is booted from TP1 and
> BMIPS_GET_CBR() returns 0 instead of a valid address and
> !!(read_c0_brcm_cmt_local() & (1 << 31)); not failing.
>
> The current check whether RAC flush should be disabled or not are not
> enough hence lets check if CBR is a valid address or not.
>
> Fixes: ab327f8acdf8 ("mips: bmips: BCM6358: disable RAC flush for TP1")
> Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
> Acked-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
> ---
> arch/mips/bmips/setup.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
applied to mips-fixes.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
