From: Ricardo B. Marliere Date: Tue, 13 Feb 2024 14:43:15 +0000 (-0300) Subject: dmaengine: idxd: make dsa_bus_type const X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cf497f3585f944ff42cc2c84453569f37a1bd6b9;p=linux.git dmaengine: idxd: make dsa_bus_type const Since commit d492cc2573a0 ("driver core: device.h: make struct bus_type a const *"), the driver core can properly handle constant struct bus_type, move the dsa_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman Suggested-by: Greg Kroah-Hartman Signed-off-by: "Ricardo B. Marliere" Reviewed-by: Dave Jiang Reviewed-by: Fenghua Yu Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20240213-bus_cleanup-idxd-v1-1-c3e703675387@marliere.net Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/idxd/bus.c b/drivers/dma/idxd/bus.c index 0c9e689a2e77d..b83b27e04f2a4 100644 --- a/drivers/dma/idxd/bus.c +++ b/drivers/dma/idxd/bus.c @@ -72,7 +72,7 @@ static int idxd_bus_uevent(const struct device *dev, struct kobj_uevent_env *env return add_uevent_var(env, "MODALIAS=" IDXD_DEVICES_MODALIAS_FMT, 0); } -struct bus_type dsa_bus_type = { +const struct bus_type dsa_bus_type = { .name = "dsa", .match = idxd_config_bus_match, .probe = idxd_config_bus_probe, diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 47de3f93ff1e9..f14a660a2a345 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -516,7 +516,7 @@ static inline void idxd_set_user_intr(struct idxd_device *idxd, bool enable) iowrite32(reg.bits, idxd->reg_base + IDXD_GENCFG_OFFSET); } -extern struct bus_type dsa_bus_type; +extern const struct bus_type dsa_bus_type; extern bool support_enqcmd; extern struct ida idxd_ida;