Re: [PATCH 4/4] x86/percpu: Use C for percpu read/write accessors

[Nadav Amit]

> On Oct 9, 2023, at 3:00 PM, Uros Bizjak <ubizjak@xxxxxxxxx> wrote:
> 
> !! External Email
> 
> On Mon, Oct 9, 2023 at 1:51 PM Ingo Molnar <mingo@xxxxxxxxxx> wrote:
>> 
>> BTW., while this OK for testing, this is too heavy handed for release
>> purposes, so please only disable the KASAN instrumentation for the affected
>> percpu accessors.
>> 
>> See the various __no_sanitize* attributes available.
> 
> These attributes are for function declarations. The percpu casts can
> not be implemented with separate static inline functions. Also,
> __no_sanitize_address is mutually exclusive with __always_inline.

Right, but for GCC you may be able to do something like:
  
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-fsanitize=address"
  
    // Your code here...
    #pragma GCC diagnostic pop

Not sure if there is something equivalent in CLANG, and it should be done with
the kernel’s _Pragma.