On 01/27/2013 09:04 PM, Joe Perches wrote: > On Sun, 2013-01-27 at 22:40 +0300, Dan Carpenter wrote: >> There is a kind of precedence problem here, but it doesn't affect how >> the code works because ->serial_signals is unsigned char. We want to >> clear two flags here. >> >> #define SerialSignal_RTS 0x20 /* Request to Send */ >> #define SerialSignal_DTR 0x80 /* Data Terminal Ready */ >> >> Without the parenthesis then it does: >> >> info->serial_signals &= 0x5f; >> >> With the parenthesis it does: >> >> info->serial_signals &= 0xffffff5f; >> >> info->serial_signals is an unsigned char so the two statements are >> equivalent, but it's cleaner to add the parenthesis. In other dtr_rts() >> functions the parenthesis are there so this makes it more consistent. > > > Wouldn't it be clearer still to use | instead of +
Ack, the plus is a mindfuck. -- js suse labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
