Khalid Aziz <khalid.aziz@xxxxxxxxxx> writes: > A protection flag may not be valid across entire address space and > hence arch_validate_prot() might need the address a protection bit is > being set on to ensure it is a valid protection flag. For example, sparc > processors support memory corruption detection (as part of ADI feature) > flag on memory addresses mapped on to physical RAM but not on PFN mapped > pages or addresses mapped on to devices. This patch adds address to the > parameters being passed to arch_validate_prot() so protection bits can > be validated in the relevant context. > > Signed-off-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx> > Cc: Khalid Aziz <khalid@xxxxxxxxxxxxxx> > Reviewed-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx> > --- > v8: > - Added addr parameter to powerpc arch_validate_prot() (suggested > by Michael Ellerman) > v9: > - new patch > > arch/powerpc/include/asm/mman.h | 4 ++-- > arch/powerpc/kernel/syscalls.c | 2 +- These changes look fine to me: Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc) cheers -- 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>
