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[2001:14ba:a0c3:3a00::782]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-30a2cef18d1sm5695991fa.76.2025.02.17.08.33.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Feb 2025 08:33:31 -0800 (PST) From: Dmitry Baryshkov Date: Mon, 17 Feb 2025 18:33:21 +0200 Subject: [PATCH v5 4/5] nvmem: core: update raw_len if the bit reading is required Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250217-sar2130p-nvmem-v5-4-2f01049d1eea@linaro.org> References: <20250217-sar2130p-nvmem-v5-0-2f01049d1eea@linaro.org> In-Reply-To: <20250217-sar2130p-nvmem-v5-0-2f01049d1eea@linaro.org> To: Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Rafa=C5=82_Mi=C5=82ecki?= Cc: Akhil P Oommen , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=988; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=MOFMpyIIla6kcWU4sBn71wT1zgg+fBI5dj5FKc/I1/4=; b=owEBbQKS/ZANAwAKARTbcu2+gGW4AcsmYgBns2TRvppiN62qcS+vSPo2KVQ6Rpm0nglgR9wyS +QRblUbotyJAjMEAAEKAB0WIQRdB85SOKWMgfgVe+4U23LtvoBluAUCZ7Nk0QAKCRAU23LtvoBl uAA0EAC8YtN615UyWbdr/bLDmW6iTKU2h7QvjDshKnKd7+6bK7RBt6hLoYMVq6n7dda1CVYZhCN 0sBuNEMcyecjNQEttanIqLWTNU/TVMf7v961zhayTEckt7ZirFdewsDXsUIrepug/P3QkFdfI/U 0yavyX4HsW+yazaPWIhwRZvisdGGEGFS0oINdfvT9WjJoqqGFcYhIQKFey+fmbi0z5Q/nSwz0UD It52TwaLDKlAnXykCuBodD2X46rrNuks53dpe7K24znmH5L3B8FuUbVCBkDVijXJPyLqPuT6M1u mOeslyGCV7UG+/uSyyXJRJ962trYh+7DIy+QSi5cMV0gu6i1lx6b2kZadrpE5z6/mPlfMJksUkV 1F33D3UlKMkqmqrHskzqPPmHoae/6BSZT8bdQiJZy5DtGpEJne5jeapaALuldIYisD78otwVgac qUAHMGoWKBaj8daJ+w/iVRBGUjVQ6/PWiKP8OZeJ4MMKnRV7xglbUWkj4sym+ZJeOV6EG3UvNa4 77ECpERsXrB7sIQrIXPjrGOXR4I98PRzG9KVpuXB77204/8d9GPB/Ue2obHCBUThEcdb4pTLcj1 0CvoDrCzVpSrZFBEVBj+zT3yoMWkqMrCC61zF7d3zR0BC98HK/HbF+LlnhHJNbqNIcQJUGU9ytP r+e40/zkWLURg4A== X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A If NVMEM cell uses bit offset or specifies bit truncation, update raw_len manually (following the cell->bytes update), ensuring that the NVMEM access is still word-aligned. Signed-off-by: Dmitry Baryshkov --- drivers/nvmem/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index ad9b716e8123537fb5fcef724a684e6db3c1de8e..b6f8544fd9662cff0a04e292bb5= 36418564f0368 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -594,9 +594,11 @@ static int nvmem_cell_info_to_nvmem_cell_entry_nodup(s= truct nvmem_device *nvmem, cell->nbits =3D info->nbits; cell->np =3D info->np; =20 - if (cell->nbits) + if (cell->nbits) { cell->bytes =3D DIV_ROUND_UP(cell->nbits + cell->bit_offset, BITS_PER_BYTE); + cell->raw_len =3D ALIGN(cell->bytes, nvmem->word_size); + } =20 if (!IS_ALIGNED(cell->offset, nvmem->stride)) { dev_err(&nvmem->dev, --=20 2.39.5