diff options
| author | Will Deacon <will.deacon@arm.com> | 2018-09-13 14:28:33 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-12-07 17:28:01 +0000 |
| commit | b4f9209bfcd5964551de434342818334ab9c8c7e (patch) | |
| tree | 69578d6a718bb6f9ff0f3f4cad3cecb801a88758 /rust/alloc/collections/git@git.tavy.me:linux.git | |
| parent | 5ef3fe4cecdf82fdd71ce78988403963d01444d4 (diff) | |
arm64: Avoid masking "old" for LSE cmpxchg() implementation
The CAS instructions implicitly access only the relevant bits of the "old"
argument, so there is no need for explicit masking via type-casting as
there is in the LL/SC implementation.
Move the casting into the LL/SC code and remove it altogether for the LSE
implementation.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'rust/alloc/collections/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions