Commit 67864842 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Greg Kroah-Hartman
Browse files

nvmem: core: update raw_len if the bit reading is required 



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: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20250411112251.68002-11-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 13bcd440

drivers/nvmem/core.c

+3 −1
Original line number Diff line number Diff line
@@ -594,9 +594,11 @@ static int nvmem_cell_info_to_nvmem_cell_entry_nodup(struct nvmem_device *nvmem, 
	cell->nbits = info->nbits;

	cell->np = info->np;



	if (cell->nbits)

	if (cell->nbits) {

		cell->bytes = DIV_ROUND_UP(cell->nbits + cell->bit_offset,

					   BITS_PER_BYTE);

		cell->raw_len = ALIGN(cell->bytes, nvmem->word_size);

	}



	if (!IS_ALIGNED(cell->offset, nvmem->stride)) {

		dev_err(&nvmem->dev,