Re: [PATCH v4] Fixing directly deferencing a __rcu pointer warning
From: Abhinav Singh
Date: Sun Nov 12 2023 - 15:22:14 EST
On 11/13/23 01:28, Peter Zijlstra wrote:
On Mon, Nov 13, 2023 at 01:00:55AM +0530, Abhinav Singh wrote:
This patch fixes the sparse warning with this message
"dereference of noderef expression" , in this context
it means about directly dereferencing a pointer tagged
with __rcu annotation.
Please, stop this madness. Just accept that sparse is a stupid tool and
the code is actually fine.
Thank you for your tine maintainers. Okay I understood that this extra
patch, is not required. Just one follow up question, in some driver code
as well I see these warning, might be possible those are real issue.
Can you suggest me like how do I know if a rcu related warning is really
a issue or just a false positive warning.
Thanks,
Abhinav.