diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-05 11:32:50 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-22 01:06:53 +0100 |
| commit | 6df534cc7136fc9e023cbd4e0011a04e3659e74d (patch) | |
| tree | 053cdf919817f3b4cb12db3d318fe020ab75382c | |
| parent | spi: spi-mt65xx: Support sleep pin control (diff) | |
| download | linux-6df534cc7136fc9e023cbd4e0011a04e3659e74d.tar.xz linux-6df534cc7136fc9e023cbd4e0011a04e3659e74d.zip | |
spi: make spi_bus_type const
Now that the driver core can properly handle constant struct bus_type,
move the spi_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Mark Brown <broonie@kernel.org>
Cc: <linux-spi@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://msgid.link/r/2024010549-erasure-swoop-1cc6@gregkh
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi.c | 2 | ||||
| -rw-r--r-- | include/linux/spi/spi.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 7477a11e12be..bc3d7c0ce6b4 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -459,7 +459,7 @@ static void spi_shutdown(struct device *dev) } } -struct bus_type spi_bus_type = { +const struct bus_type spi_bus_type = { .name = "spi", .dev_groups = spi_dev_groups, .match = spi_match_device, diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 471fe2ff9066..f306aececeaf 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -36,7 +36,7 @@ struct spi_message; * INTERFACES between SPI master-side drivers and SPI slave protocol handlers, * and SPI infrastructure. */ -extern struct bus_type spi_bus_type; +extern const struct bus_type spi_bus_type; /** * struct spi_statistics - statistics for spi transfers |