5.4-stable review patch. If anyone has any objections, please let me know.
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From: Richard Fitzgerald rf@opensource.cirrus.com
commit 71833e79a42178d8a50b5081c98c78ace9325628 upstream.
Replace IS_ENABLED() with IS_REACHABLE() to substitute empty stubs for: i2c_acpi_get_i2c_resource() i2c_acpi_client_count() i2c_acpi_find_bus_speed() i2c_acpi_new_device_by_fwnode() i2c_adapter *i2c_acpi_find_adapter_by_handle() i2c_acpi_waive_d0_probe()
commit f17c06c6608a ("i2c: Fix conditional for substituting empty ACPI functions") partially fixed this conditional to depend on CONFIG_I2C, but used IS_ENABLED(), which is wrong since CONFIG_I2C is tristate.
CONFIG_ACPI is boolean but let's also change it to use IS_REACHABLE() to future-proof it against becoming tristate.
Somehow despite testing various combinations of CONFIG_I2C and CONFIG_ACPI we missed the combination CONFIG_I2C=m, CONFIG_ACPI=y.
Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com Fixes: f17c06c6608a ("i2c: Fix conditional for substituting empty ACPI functions") Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202408141333.gYnaitcV-lkp@intel.com/ Reviewed-by: Takashi Iwai tiwai@suse.de Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/i2c.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -979,7 +979,7 @@ static inline int of_i2c_get_board_info( struct acpi_resource; struct acpi_resource_i2c_serialbus;
-#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_I2C) +#if IS_REACHABLE(CONFIG_ACPI) && IS_REACHABLE(CONFIG_I2C) bool i2c_acpi_get_i2c_resource(struct acpi_resource *ares, struct acpi_resource_i2c_serialbus **i2c); u32 i2c_acpi_find_bus_speed(struct device *dev);