On 10/17/2017 7:40 PM, Abbott Liu wrote: >On Wed, Oct 11, 2017 at 03:10:56PM -0700, Laura Abbott wrote: >The decompressor does not link with the standard C library, so it >needs to provide implementations of standard C library functionality >where required. That means, if we have any memset() users, we need >to provide the memset() function. > >The undef is there to avoid the optimisation we have in asm/string.h >for __memzero, because we don't want to use __memzero in the >decompressor. > >Whether memset() is required depends on which compression method is >being used - LZO and LZ4 appear to make direct references to it, but >the inflate (gzip) decompressor code does not. > >What this means is that all supported kernel compression options need >to be tested. Thanks for your review. I am sorry that I am so late to reply your email. I will test all arm kernel compression options. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href