On Tue, Aug 22, 2023 at 04:47:26PM +0000, Edgecombe, Rick P wrote:
On Tue, 2023-08-22 at 16:41 +0100, Mark Brown wrote:
I can certainly update it to do that, I was just trying to fit in with how the code was written on the basis that there was probably a good reason for it that had been discussed somewhere. I can send an incremental patch for this on top of the x86 patches assuming they go in during the merge window.
There was something like that on the x86 series way back, but it was dropped[0]. IIRC risc-v was going to try to do something other than VM_SHADOW_STACK, so they may conflict some day. But in the meantime, adding a CONFIG_HAVE_ARCH_SHADOW_STACK here in the arm series makes sense to me.
OK, I'll do that.