From: "Arnd Bergmann" <arnd@arndb.de>
To: "Marco Elver" <elver@google.com>
Cc: kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
"Dmitry Vyukov" <dvyukov@google.com>
Subject: Re: [PATCH v2] kcsan: Silence -Wmaybe-uninitialized when calling __kcsan_check_access()
Date: Thu, 30 Apr 2026 15:35:16 +0200 [thread overview]
Message-ID: <78e9ad5a-b66d-4309-93f6-c88968c1ab5c@app.fastmail.com> (raw)
In-Reply-To: <CANpmjNNNbb_3QuixgY3zST=EByu6CDtVqvfc11bRq8=1rYj==A@mail.gmail.com>
On Thu, Apr 30, 2026, at 15:30, Marco Elver wrote:
> On Wed, 22 Apr 2026 at 14:53, Marco Elver <elver@google.com> wrote:
>>
>> Link: https://lore.kernel.org/all/5da10cca-875b-418d-b54e-6be3ea32c266@app.fastmail.com/ [1]
>> Reported-by: Arnd Bergmann <arnd@arndb.de>
>> Signed-off-by: Marco Elver <elver@google.com>
>
> Arnd, are you ok with this version?
>
> I don't think there's a simpler option - the name "absolute_pointer"
> might be misleading, but the underlying RELOC_HIDE is what we need
> here. Could use RELOC_HIDE directly.
>
> The attribute would have been nice, but comes with a whole set of new
> problems. :-/
Agreed, I had tried a few things but haven't been able to come up
with anything better than this or my original patch.
I've tested this version in my randconfig tree using gcc-16
and found no more regressions.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2026-04-30 13:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-22 12:52 Marco Elver
2026-04-30 13:30 ` Marco Elver
2026-04-30 13:35 ` Arnd Bergmann [this message]
2026-04-30 13:55 ` Marco Elver
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