On Mon, Jun 22, 2020 at 08:37:17AM -0700, Randy Dunlap wrote: > On 6/20/20 9:37 PM, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > > The mm-of-the-moment snapshot 2020-06-20-21-36 has been uploaded to > > > > http://www.ozlabs.org/~akpm/mmotm/ > > > > mmotm-readme.txt says > > > > README for mm-of-the-moment: > > > > http://www.ozlabs.org/~akpm/mmotm/ > > > > This is a snapshot of my -mm patch queue. Uploaded at random hopefully > > more than once a week. > > drivers/misc/lkdtm/bugs.c has build errors when building UML for i386 > (allmodconfig or allyesconfig): > > > In file included from ../drivers/misc/lkdtm/bugs.c:17:0: > ../arch/x86/um/asm/desc.h:7:0: warning: "LDT_empty" redefined > #define LDT_empty(info) (\ > > In file included from ../arch/um/include/asm/mmu.h:10:0, > from ../include/linux/mm_types.h:18, > from ../include/linux/sched/signal.h:13, > from ../drivers/misc/lkdtm/bugs.c:11: > ../arch/x86/um/asm/mm_context.h:65:0: note: this is the location of the previous definition > #define LDT_empty(info) (_LDT_empty(info)) The LKDTM test landed a while ago: b09511c253e5 ("lkdtm: Add a DOUBLE_FAULT crash type on x86") and nothing has touched arch/x86/um/asm/desc.h nor arch/x86/um/asm/mm_context.h in a while either. Regardless, it seems arch/x86/um/asm/desc.h is not needed any more? -- Kees Cook
