linux-kernel - Re: [PATCH v12 1/3] lib: Introduce hierarchical per-cpu counters

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Message-ID: <24a78f8a-202f-4d25-8967-b15a665b89e0@efficios.com>
Date: Sun, 11 Jan 2026 14:25:55 -0500
From: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To: kernel test robot <lkp@...el.com>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: oe-kbuild-all@...ts.linux.dev,
 Linux Memory Management List <linux-mm@...ck.org>,
 linux-kernel@...r.kernel.org, "Paul E. McKenney" <paulmck@...nel.org>,
 Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Dennis Zhou <dennis@...nel.org>,
 Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux-foundation.org>,
 Martin Liu <liumartin@...gle.com>, David Rientjes <rientjes@...gle.com>,
 christian.koenig@....com, Shakeel Butt <shakeel.butt@...ux.dev>,
 SeongJae Park <sj@...nel.org>, Michal Hocko <mhocko@...e.com>,
 Johannes Weiner <hannes@...xchg.org>,
 Sweet Tea Dorminy <sweettea-kernel@...miny.me>,
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 "Liam R . Howlett" <liam.howlett@...cle.com>, Mike Rapoport
 <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>,
 Vlastimil Babka <vbabka@...e.cz>, Christian Brauner <brauner@...nel.org>,
 Wei Yang <richard.weiyang@...il.com>, David Hildenbrand <david@...hat.com>,
 Miaohe Lin <linmiaohe@...wei.com>, Al Viro <viro@...iv.linux.org.uk>,
 linux-trace-kernel@...r.kernel.org, Yu Zhao <yuzhao@...gle.com>
Subject: Re: [PATCH v12 1/3] lib: Introduce hierarchical per-cpu counters

On 2026-01-11 13:36, kernel test robot wrote:
> Hi Mathieu,
> 
> kernel test robot noticed the following build errors:
> 
> All errors (new ones prefixed by >>):
> 
>     In file included from init/main.c:107:
>>> include/linux/percpu_counter_tree.h:230:13: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic64_t *') to parameter of type 'atomic_t *' [-Werror,-Wincompatible-pointer-types]
>       230 |         atomic_set(&counter->count, v);
>           |                    ^~~~~~~~~~~~~~~
>     include/linux/atomic/atomic-instrumented.h:65:22: note: passing argument to parameter 'v' here
>        65 | atomic_set(atomic_t *v, int i)
>           |                    

Will fix and send a v13.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com