From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Pengpeng Hou <pengpeng@iscas.ac.cn>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
kees@kernel.org
Subject: Re: [PATCH v2] Input: gf2k: skip invalid hat lookup values
Date: Mon, 6 Apr 2026 22:12:17 -0700 [thread overview]
Message-ID: <adSSLtg5CeugykNO@google.com> (raw)
In-Reply-To: <20260407120001.1-gf2k-v2-pengpeng@iscas.ac.cn>
On Tue, Apr 07, 2026 at 09:56:52AM +0800, Pengpeng Hou wrote:
> gf2k_read() decodes the hat position from a 4-bit field and uses it
> directly to index gf2k_hat_to_axis[]. The lookup table only has nine
> entries, so malformed packets can read past the end of the fixed table.
>
> Skip hat reporting when the decoded value falls outside the lookup
> table instead of forcing it to the neutral position. This keeps the
> fix local and avoids reporting a made-up axis state for malformed
> packets.
>
> Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Applied, thank you.
--
Dmitry
next prev parent reply other threads:[~2026-04-07 5:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-23 7:45 [PATCH] Input: gf2k: clamp hat values to the lookup table Pengpeng Hou
2026-03-25 3:07 ` Dmitry Torokhov
2026-04-07 1:56 ` [PATCH v2] Input: gf2k: skip invalid hat lookup values Pengpeng Hou
2026-04-07 5:12 ` Dmitry Torokhov [this message]
2026-04-07 3:30 ` [PATCH] Input: gf2k: clamp hat values to the lookup table Pengpeng Hou
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