On 12/14/2015 03:19 AM, Will Deacon wrote: >> +# max bits determined by the following formula: >> +# VA_BITS - PAGE_SHIFT - 3 > > Now that we have this comment, I think we can drop the unsupported > combinations from the list below. That means we just end up with: > >> +config ARCH_MMAP_RND_BITS_MAX >> + default 19 if ARM64_VA_BITS=36 >> + default 24 if ARM64_VA_BITS=39 >> + default 27 if ARM64_VA_BITS=42 >> + default 30 if ARM64_VA_BITS=47 >> + default 29 if ARM64_VA_BITS=48 && ARM64_64K_PAGES >> + default 31 if ARM64_VA_BITS=48 && ARM64_16K_PAGES >> + default 33 if ARM64_VA_BITS=48 Unless you object, I'd like to keep the last 3 as well, to mirror the min bits, should any new configurations be added but not reflected here: + default 15 if ARM64_64K_PAGES + default 17 if ARM64_16K_PAGES + default 18 The first two of these three should be changed as well to 14 and 16. Thanks, Dan -- 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=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>