Date: Mon, 18 Jul 2011 11:10:13 GMT From: Alexander Motin <mav@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/150315: [ata] sizeof(union ccb) changed between 7.x and 8.x Message-ID: <201107181110.p6IBADwO028930@freefall.freebsd.org>
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The following reply was made to PR kern/150315; it has been noted by GNATS. From: Alexander Motin <mav@FreeBSD.org> To: bug-followup@FreeBSD.org, wollman@freebsd.org Cc: Subject: Re: kern/150315: [ata] sizeof(union ccb) changed between 7.x and 8.x Date: Mon, 18 Jul 2011 13:43:08 +0300 The main problem is not just in union ccb size change. Problem is that elements newly added to several structures were added not to the ends, and in some places there are arrays of structures used. As result providing compatibility layer would required to repack all requests and responses, reordering their fields. I am not sure that supporting it now (1.5 years after 8.0 release) worth polluting code. Speaking about smartctl -- the best way is to rebuild it, as new version also supports CAM ATA. -- Alexander Motin
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