Dear Greg, Thanks for taking the time to review. On Tue, Mar 07, 2017 at 08:01:38PM +0100, Greg KH wrote: > On Sun, Mar 05, 2017 at 03:22:32AM +0800, Cheah Kok Cheong wrote: > > Change to unsigned to allow removal of negative value check in > > init section. > > Why? >
User can input a -ve number as parameter for module loading. This will be caught by the mentioned check and cause loading to fail. I think the original intention here is to inform user via kernel log the acceptable input range. Now if a user doesn't know how to access the log, it's of no help. If a user does know how to access the log, probably also know how to use modinfo or know that reserving a -ve number of minors is not acceptable. IMHO, this check is pointless and best enforced in module_param. > > Use smaller data type since the max possible value currently is 48. > > Does it matter? > You are right it doesn't matter and not worth the effort doing unless concurrent work is being done in this area. Which is what patch 2/2 is trying to do here. Please note that I've sent V2. Patch 1/2 unchanged and 2/2 with amended commit log. Thanks, Brgds, CheahKC > thanks, > > greg k-h _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
