Re: [PATCH] [v2] spi: rockchip: avoid objtool warning

[Pratyush Yadav <p.yadav@xxxxxx>]

On 26/02/21 03:00PM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> Building this file with clang leads to a an unreachable code path
> causing a warning from objtool:
> 
> drivers/spi/spi-rockchip.o: warning: objtool: rockchip_spi_transfer_one()+0x2e0: sibling call from callable instruction with modified stack frame
> 
> Change the unreachable() into an error return that can be
> handled if it ever happens, rather than silently crashing
> the kernel.
> 
> Fixes: 65498c6ae241 ("spi: rockchip: support 4bit words")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Acked-by: Pratyush Yadav <p.yadav@xxxxxx>

-- 
Regards,
Pratyush Yadav
Texas Instruments Inc.