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spi: gpio: fix const issue in spi_to_spi_gpio()

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While the struct spi_device * passed into spi_to_spi_gpio() is a const
one, the struct spi_bitbang * that is retrieved from the controller
field in the spi_device is NOT a const pointer, as it is coming from the
spi_controller_get_devdata() call, and then passed to container_of()
which would strip off the const attribute for no good reason (i.e. if a
const pointer is passed to container_of() it still is const coming out).

Fix this all up by properly declaring the struct spi_bitbang * as not
const.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/2025052225-scallion-ritzy-dbbd@gregkh
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Greg Kroah-Hartman
2025-05-22 12:03:34 +01:00
committed by Mark Brown
parent 0f529570ec
commit 2712a7d362
1 changed files with 1 additions and 1 deletions
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drivers/spi/spi-gpio.c
+1 -1
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@@ -46,7 +46,7 @@ struct spi_gpio {
static inline struct spi_gpio *__pure
spi_to_spi_gpio(const struct spi_device *spi)
{
const struct spi_bitbang *bang;
struct spi_bitbang *bang;
struct spi_gpio *spi_gpio;
bang = spi_controller_get_devdata(spi->controller);