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From: Marijn Suijten <marijn.suijten@somainline.org>
To: phone-devel@vger.kernel.org, Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Lee Jones <lee.jones@linaro.org>,
	Daniel Thompson <daniel.thompson@linaro.org>,
	Jingoo Han <jingoohan1@gmail.com>
Cc: ~postmarketos/upstreaming@lists.sr.ht,
	AngeloGioacchino Del Regno 
	<angelogioacchino.delregno@somainline.org>,
	Konrad Dybcio <konrad.dybcio@somainline.org>,
	Martin Botka <martin.botka@somainline.org>,
	Jami Kettunen <jami.kettunen@somainline.org>,
	Pavel Dubrova <pashadubrova@gmail.com>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	Kiran Gunda <kgunda@codeaurora.org>,
	Courtney Cavin <courtney.cavin@sonymobile.com>,
	Bryan Wu <cooloney@gmail.com>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 00/10] backlight: qcom-wled: fix and solidify handling of enabled-strings
Date: Mon,  4 Oct 2021 21:27:31 +0200	[thread overview]
Message-ID: <20211004192741.621870-1-marijn.suijten@somainline.org> (raw)

This patchset fixes WLED's handling of enabled-strings: besides some
cleanup it is now actually possible to specify a non-contiguous array of
enabled strings (not necessarily starting at zero) and the values from
DT are now validated to prevent possible unexpected out-of-bounds
register and array element accesses.
Off-by-one mistakes in the maximum number of strings, also causing
out-of-bounds access, have been addressed as well.

Marijn Suijten (10):
  backlight: qcom-wled: Pass number of elements to read to
    read_u32_array
  backlight: qcom-wled: Use cpu_to_le16 macro to perform conversion
  backlight: qcom-wled: Override num-strings when enabled-strings is set
  backlight: qcom-wled: Validate enabled string indices in DT
  backlight: qcom-wled: Fix off-by-one maximum with default num_strings
  backlight: qcom-wled: Remove unnecessary 4th default string in wled3
  backlight: qcom-wled: Provide enabled_strings default for wled 4 and 5
  backlight: qcom-wled: Remove unnecessary double whitespace
  backlight: qcom-wled: Consistently use enabled-strings in
    set_brightness
  backlight: qcom-wled: Consider enabled_strings in autodetection

 drivers/video/backlight/qcom-wled.c | 88 ++++++++++++++++++-----------
 1 file changed, 55 insertions(+), 33 deletions(-)

-- 
2.33.0


             reply	other threads:[~2021-10-04 19:27 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-04 19:27 Marijn Suijten [this message]
2021-10-04 19:27 ` [PATCH 01/10] backlight: qcom-wled: Pass number of elements to read to read_u32_array Marijn Suijten
2021-10-05  9:05   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 02/10] backlight: qcom-wled: Use cpu_to_le16 macro to perform conversion Marijn Suijten
2021-10-05  9:06   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 03/10] backlight: qcom-wled: Override num-strings when enabled-strings is set Marijn Suijten
2021-10-05  9:38   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 04/10] backlight: qcom-wled: Validate enabled string indices in DT Marijn Suijten
2021-10-05  9:14   ` Daniel Thompson
2021-10-05 10:03     ` Marijn Suijten
2021-10-05 10:42       ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 05/10] backlight: qcom-wled: Fix off-by-one maximum with default num_strings Marijn Suijten
2021-10-05  9:19   ` Daniel Thompson
2021-10-05 10:06     ` Marijn Suijten
2021-10-05 10:38       ` Daniel Thompson
2021-10-05 10:53         ` Daniel Thompson
2021-10-05 11:44           ` Marijn Suijten
2021-10-05 14:03             ` Daniel Thompson
2021-10-05 15:23               ` Marijn Suijten
2021-10-05 16:24                 ` Daniel Thompson
2021-10-05 16:50                   ` Konrad Dybcio
2021-10-05 17:34                   ` Marijn Suijten
2021-10-06 14:44                     ` Daniel Thompson
2021-10-07 21:28                       ` Marijn Suijten
2021-10-04 19:27 ` [PATCH 06/10] backlight: qcom-wled: Remove unnecessary 4th default string in wled3 Marijn Suijten
2021-10-05  9:20   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 07/10] backlight: qcom-wled: Provide enabled_strings default for wled 4 and 5 Marijn Suijten
2021-10-05  9:21   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 08/10] backlight: qcom-wled: Remove unnecessary double whitespace Marijn Suijten
2021-10-05  9:21   ` Daniel Thompson
2021-10-04 19:27 ` [PATCH 09/10] backlight: qcom-wled: Consistently use enabled-strings in set_brightness Marijn Suijten
2021-10-05  9:33   ` Daniel Thompson
2021-10-05 10:12     ` Marijn Suijten
2021-10-04 19:27 ` [PATCH 10/10] backlight: qcom-wled: Consider enabled_strings in autodetection Marijn Suijten

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