On Wed, Oct 07, 2015 at 09:59:34AM +0200, Arnd Bergmann wrote: > resource_size_t may be 32-bit wide on some architectures, which causes > this warning when building the NTB code: > > drivers/ntb/ntb_transport.c: In function 'ntb_transport_link_work': > drivers/ntb/ntb_transport.c:828:46: warning: right shift count >= width of > type [-Wshift-count-overflow] > > The warning is harmless but can be avoided by using the upper_32_bits() > macro. > > Signed-off-by: Arnd Bergmann <[email protected]> > Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Pulled in to the next release (coming out shortly). Thanks, Jon > --- > Found while building ARM allmodconfig > > diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c > index 6e3ee907d186..700f3ae833c2 100644 > --- a/drivers/ntb/ntb_transport.c > +++ b/drivers/ntb/ntb_transport.c > @@ -825,10 +825,10 @@ static void ntb_transport_link_work(struct work_struct > *work) > size = max_mw_size; > > spad = MW0_SZ_HIGH + (i * 2); > - ntb_peer_spad_write(ndev, spad, (u32)(size >> 32)); > + ntb_peer_spad_write(ndev, spad, upper_32_bits(size)); > > spad = MW0_SZ_LOW + (i * 2); > - ntb_peer_spad_write(ndev, spad, (u32)size); > + ntb_peer_spad_write(ndev, spad, lower_32_bits(size)); > } > > ntb_peer_spad_write(ndev, NUM_MWS, nt->mw_count); > > -- > You received this message because you are subscribed to the Google Groups > "linux-ntb" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/linux-ntb/10263287.Brd9HPYQJD%40wuerfel. > For more options, visit https://groups.google.com/d/optout. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
