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dmaengine: idxd: make dsa_bus_type const

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Since commit d492cc2573 ("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 <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240213-bus_cleanup-idxd-v1-1-c3e703675387@marliere.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Ricardo B. Marliere 2024-02-13 11:43:15 -03:00 committed by Vinod Koul
parent de7d9cb3b0
commit cf497f3585
2 changed files with 2 additions and 2 deletions
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2
drivers/dma/idxd/bus.c
View File

@ -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,

2
drivers/dma/idxd/idxd.h
View File

@ -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;