On Monday 29 February 2016 13:58:13 Michal Marek wrote: > On 2016-02-29 13:40, Arnd Bergmann wrote: > > When KERNEL_LZ4 is set, we always get an output even when building > > with 'make -s': > > > > *** LZ4 Compression CLI , by Yann Collet (May 31 2013) *** > > ! Generating compressed LZ4 using Legacy format (deprecated !) ! > > Using stdin for input > > Using stdout for output > > Compressed 11213376 bytes into 4555781 bytes ==> 40.63% > > Done in 0.63 s ==> 16.97 MB/s > > > > The output is not helpful in the context of building the kernel, > > so this patch hides the stdout output of the lz4 binary completely. > > > - lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ > > + lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ 2>&1 || \ > > (rm -f $@ ; false) > > Hi Arnd, > > this redirection does not hide it, but rather includes it in the > compressed image file. Oops, you are right. I was cleaning out some older patches I had in my queue and hadn't realized it was completely botched this way. > BTW, my copy of lz4c only displays this warning with -v. I've updated my copy of lz4c now and can confirm that the output is completely gone (without -v). I won't follow up with a fixed version then, as the problem is already solved elsewhere. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
