Hi all, After merging the driver-core tree, today's linux-next build (s390-defconfig) failed like this: drivers/s390/crypto/ap_bus.c:1596:20: error: initialization of 'ssize_t (*)(const struct bus_type *, char *)' {aka 'long int (*)(const struct bus_type *, char *)'} from incompatible pointer type 'ssize_t (*)(struct bus_type *, char *)' {aka 'long int (*)(struct bus_type *, char *)'} [-Werror=incompatible-pointer-types] (reported here: http://kisskb.ellerman.id.au/kisskb/buildresult/14902509/) Caused by commit 75cff725d956 ("driver core: bus: mark the struct bus_type for sysfs callbacks as constant") interacting with commit d7b1813af6a5 ("s390/ap: introduce new AP bus sysfs attribute features") from the s390 tree. I will apply the following (currently untested) merge fix up patch from tomorrow: From: Stephen Rothwell Date: Mon, 27 Mar 2023 15:42:41 +1100 Subject: [PATCH] fixup for "driver core: bus: mark the struct bus_type for sysfs callbacks as constant" interacting with "s390/ap: introduce new AP bus sysfs attribute features" Signed-off-by: Stephen Rothwell --- drivers/s390/crypto/ap_bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 85bb0de15e76..8d6b9a52bf3c 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1570,7 +1570,7 @@ static ssize_t bindings_show(const struct bus_type *bus, char *buf) static BUS_ATTR_RO(bindings); -static ssize_t features_show(struct bus_type *bus, char *buf) +static ssize_t features_show(const struct bus_type *bus, char *buf) { int n = 0; -- 2.39.2 -- Cheers, Stephen Rothwell