Hello, On Thursday 11 April 2013 13:08:08, Vineet Gupta wrote: > On 04/09/2013 05:19 PM, Christian Ruppert wrote: > > Until now, kernel compression can only be disabled by deselecting > > HAVE_<compression> in the architecture Kconfig. However, some > > users/platforms within the same architecture might want to use > > compression while others might want to disable it. > > This patch is a solution to the dilemma. > > > > Signed-off-by: Christian Ruppert <christian.rupp...@abilis.com> > > --- > > init/Kconfig | 8 +++++++- > > 1 files changed, 7 insertions(+), 1 deletions(-) > > > > diff --git a/init/Kconfig b/init/Kconfig > > index 5341d72..0924c51 100644 > > --- a/init/Kconfig > > +++ b/init/Kconfig > > @@ -101,7 +101,6 @@ config HAVE_KERNEL_LZO > > choice > > prompt "Kernel compression mode" > > default KERNEL_GZIP > > - depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || > > HAVE_KERNEL_XZ || HAVE_KERNEL_LZO > > help > > The linux kernel is a kind of self-extracting executable. > > Several compression algorithms are available, which differ > > @@ -120,6 +119,13 @@ choice > > > > If in doubt, select 'gzip' > > > > +config KERNEL_UNCOMPRESSED > > + bool "No compression" > > > + help > > + No compression at all. The kernel is huge but the compression and > > + decompression times are zero. > > + This is usually not what you want. > > + > > config KERNEL_GZIP > > bool "Gzip" > > depends on HAVE_KERNEL_GZIP > > FWIW, this is an issue for ARC port where one of our platforms runs on a very > slow > FPGA, hence doesn't want to spend time uncompressing the image - while others > do > want the gzip. > > Reviewed-by: Vineet Gupta <vgu...@synopsys.com>
Even some other platforms, e.g. ARM you want no compression, if you can effort the additional space, if you want to boot extremely fast. Best regards, Alexander -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
