Messages in this thread | | | Date | Mon, 23 Sep 2019 11:20:24 +0200 | From | Peter Zijlstra <> | Subject | Re: linux-next: Tree for Sep 18 (objtool) |
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On Wed, Sep 18, 2019 at 09:04:21PM -0700, Randy Dunlap wrote: > On 9/18/19 3:10 PM, Mark Brown wrote: > > Hi all, > > > > Changes since 20190917: > > > > on x86_64: > > drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: i915_gem_execbuffer2_ioctl()+0x2fb: call to gen8_canonical_addr() with UACCESS enabled
I'm thinking that comes from:
offset = gen8_canonical_addr(offset & ~UPDATE); if (unlikely(__put_user(offset, &urelocs[r-stack].presumed_offset))) {
however, per commit 6ae865615fc4 (and 2a418cf3f5f1) the compiler really should not be sticking gen8_canonical_addr() after __uaccess_begin().
/me puzzled...
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