powerpc: Remove comment about read_barrier_depends()

willdeacon · paulmckrcu · commit c7e9c01f928a · 2020-01-24T10:33:52.000-08:00
'read_barrier_depends()' doesn't exist anymore so stop talking about it.

Signed-off-by: Will Deacon &lt;will@kernel.org&gt;
Acked-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
Signed-off-by: Paul E. McKenney &lt;paulmck@kernel.org&gt;
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
@@ -18,8 +18,6 @@
  * mb() prevents loads and stores being reordered across this point.
  * rmb() prevents loads being reordered across this point.
  * wmb() prevents stores being reordered across this point.
- * read_barrier_depends() prevents data-dependent loads being reordered
- *	across this point (nop on PPC).
  *
  * *mb() variants without smp_ prefix must order all types of memory
  * operations with one another. sync is the only instruction sufficient

Original file line number	Diff line number	Diff line change
`@@ -18,8 +18,6 @@`
`18`	`18`	`* mb() prevents loads and stores being reordered across this point.`
`19`	`19`	`* rmb() prevents loads being reordered across this point.`
`20`	`20`	`* wmb() prevents stores being reordered across this point.`
`21`		`- * read_barrier_depends() prevents data-dependent loads being reordered`
`22`		`- * across this point (nop on PPC).`
`23`	`21`	`*`
`24`	`22`	`* *mb() variants without smp_ prefix must order all types of memory`
`25`	`23`	`* operations with one another. sync is the only instruction sufficient`