Date: Sat, 22 Jan 2011 16:09:18 +0100 From: Gary Jennejohn <gljennjohn@googlemail.com> To: Hans Petter Selasky <hselasky@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r217718 - in head/sys: conf dev/usb Message-ID: <20110122160918.373f8670@ernst.jennejohn.org> In-Reply-To: <201101221352.p0MDqNt3093630@svn.freebsd.org> References: <201101221352.p0MDqNt3093630@svn.freebsd.org>
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On Sat, 22 Jan 2011 13:52:23 +0000 (UTC) Hans Petter Selasky <hselasky@FreeBSD.org> wrote: > Author: hselasky > Date: Sat Jan 22 13:52:23 2011 > New Revision: 217718 > URL: http://svn.freebsd.org/changeset/base/217718 > > Log: > Allow USB_HOST_ALIGN to be configured at compile time. This patch is > necessary for MIPS based RouterStation Pro board and maybe other MIPS > based boards as well. > > Submitted by: Milan Obuch > Approved by: thompsa (mentor) > > Modified: > head/sys/conf/options > head/sys/dev/usb/usb_freebsd.h > > Modified: head/sys/conf/options > ============================================================================== > --- head/sys/conf/options Sat Jan 22 13:18:28 2011 (r217717) > +++ head/sys/conf/options Sat Jan 22 13:52:23 2011 (r217718) > @@ -642,6 +642,7 @@ BUS_DEBUG opt_bus.h > > # options for USB support > USB_DEBUG opt_usb.h > +USB_HOST_ALIGN opt_usb.h > USB_REQ_DEBUG opt_usb.h > USB_VERBOSE opt_usb.h > USB_EHCI_BIG_ENDIAN_DESC opt_usb.h > > Modified: head/sys/dev/usb/usb_freebsd.h > ============================================================================== > --- head/sys/dev/usb/usb_freebsd.h Sat Jan 22 13:18:28 2011 (r217717) > +++ head/sys/dev/usb/usb_freebsd.h Sat Jan 22 13:52:23 2011 (r217718) > @@ -46,7 +46,12 @@ > #define USB_TD_GET_PROC(td) (td)->td_proc > #define USB_PROC_GET_GID(td) (td)->p_pgid > > +#if defined(USB_HOST_ALIGN) && (USB_HOST_ALIGN != 0) > +/* USB_HOST_ALIGN is already defined and valid */ > Not necessarily valid. What if the user sets it to -24? The compiler will happily accept that with the above #if-statement. IMO you should test for USB_HOST_ALIGN > 0, which should always work. Defensive programming is always a good idea. > +#else > +#undef USB_HOST_ALIGN > #define USB_HOST_ALIGN 8 /* bytes, must be power of two */ > +#endif > #define USB_FS_ISOC_UFRAME_MAX 4 /* exclusive unit */ > #define USB_BUS_MAX 256 /* units */ > #define USB_MAX_DEVICES 128 /* units */ > _______________________________________________ > svn-src-all@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/svn-src-all > To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org" -- Gary Jennejohn
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