Hans Verkuil wrote: > RFC: remove support from v4l-dvb for kernels < 2.6.16 > > After spending some time trying to get v4l-dvb to compile on older > kernels I discovered that: > > - it is OK for kernels >= 2.6.19 > > - it does not compile at the moment for kernels >= 2.6.16 and < 2.6.19, > but that this can be fixed. > > - that it can be made to compile for kernels >= 2.6.12 and < 2.6.16, > although quite a few drivers had to be disabled and looking at the type > of compile warnings emitted the result would likely crash, especially > the closer one gets to 2.6.12. > > - that I no longer can compile against older kernels since gcc-4.1.2 no > longer accepts some constructions used in those kernel sources. > > I propose that we remove the support for kernels < 2.6.16. Kernel 2.6.16 > is the kernel that's being maintained long-term, so that makes it a > good starting point. I know that I get the occasional question about > kernel 2v4l/em28xx-audio.c.6.18, so that definitely has to be supported > by v4l-dvb, and the differences between 2.6.18 and 2.6.16 are minor, so > extending the support to 2.6.16 is not a problem. > > I did a few scans and of the approximately 932 KERNEL_VERSION checks > only 268 remain if we drop support for anything below 2.6.26. That's a > major cleanup. > > Since it is now simply broken for anything below 2.6.19 I think it is a > good solution to on the one hand do a major cleanup at the expense of > making it unlikely that we will ever support kernels below 2.6.16, and > on the other hand at least start to support 2.6.16 and up. > > I can set up a test build to periodically test if v4l-dvb still compiles > on these older kernels (although currently I can only test on a 32 bit > Intel platform). > > I'm also willing to do the clean up (I've always liked throwing away > code!). > > In the long term we should probably review the minimum kernel > requirements on a yearly basis and see if we should move it up. > Especially major changes in the way the kernel handles device structs > can be a big pain to maintain. That's currently the main reason for the > breakage of kernels < 2.6.19. > > Regards, > > Hans Verkuil Ack, I second that. CU Oliver -- ---------------------------------------------------------------- VDR Remote Plugin 0.4.0: http://www.escape-edv.de/endriss/vdr/ ---------------------------------------------------------------- _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
