Re: [PATCH v3 3/3] asm-generic, x86: Add bitops instrumentation for KASAN

[Andrey Ryabinin]

On 5/31/19 6:08 PM, Marco Elver wrote:
> This adds a new header to asm-generic to allow optionally instrumenting
> architecture-specific asm implementations of bitops.
> 
> This change includes the required change for x86 as reference and
> changes the kernel API doc to point to bitops-instrumented.h instead.
> Rationale: the functions in x86's bitops.h are no longer the kernel API
> functions, but instead the arch_ prefixed functions, which are then
> instrumented via bitops-instrumented.h.
> 
> Other architectures can similarly add support for asm implementations of
> bitops.
> 
> The documentation text was derived from x86 and existing bitops
> asm-generic versions: 1) references to x86 have been removed; 2) as a
> result, some of the text had to be reworded for clarity and consistency.
> 
> Tested: using lib/test_kasan with bitops tests (pre-requisite patch).
> 
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=198439
> Signed-off-by: Marco Elver <elver@xxxxxxxxxx>

Reviewed-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>