On Mon, Jun 22, 2020 at 11:51 PM Kees Cook [off-list ref] wrote:

On Mon, Jun 22, 2020 at 08:37:17AM -0700, Randy Dunlap wrote:

quoted

On 6/20/20 9:37 PM, akpm@linux-foundation.org wrote:

quoted

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?

True that, we can rip the file.

-- 
Thanks,
//richard