Re: [PATCH] cxgb4: Use proper enum in IEEE_FAUX_SYNC

From: Nick Desaulniers
Date: Mon Oct 01 2018 - 18:50:17 EST


On Sun, Sep 30, 2018 at 8:47 PM Nathan Chancellor
<natechancellor@xxxxxxxxx> wrote:
>
> Clang warns when one enumerated type is implicitly converted to another.
>
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:390:4: warning: implicit
> conversion from enumeration type 'enum cxgb4_dcb_state' to different
> enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]

Luckily these 2 enums had the same values, so this change is no
functional change. Thanks for the patch!
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>

> IEEE_FAUX_SYNC(dev, dcb);
> ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h:70:10: note: expanded
> from macro 'IEEE_FAUX_SYNC'
> CXGB4_DCB_STATE_FW_ALLSYNCED);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Use the equivalent value of the expected type to silence Clang while
> resulting in no functional change.
>
> CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3
>
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> ---
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
> index 02040b99c78a..484ee8290090 100644
> --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
> +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
> @@ -67,7 +67,7 @@
> do { \
> if ((__dcb)->dcb_version == FW_PORT_DCB_VER_IEEE) \
> cxgb4_dcb_state_fsm((__dev), \
> - CXGB4_DCB_STATE_FW_ALLSYNCED); \
> + CXGB4_DCB_INPUT_FW_ALLSYNCED); \
> } while (0)
>
> /* States we can be in for a port's Data Center Bridging.
> --
> 2.19.0
>


--
Thanks,
~Nick Desaulniers