diff options
| author | Ricardo B. Marliere <ricardo@marliere.net> | 2024-02-13 11:43:15 -0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2024-02-16 17:47:37 +0530 |
| commit | cf497f3585f944ff42cc2c84453569f37a1bd6b9 (patch) | |
| tree | 8941e9a138db5c6071c12fb8c2a17330de1f3526 | |
| parent | de7d9cb3b064fdfb2e0e7706d14ffee20b762ad2 (diff) | |
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 <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>
| -rw-r--r-- | drivers/dma/idxd/bus.c | 2 | ||||
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/idxd/bus.c b/drivers/dma/idxd/bus.c index 0c9e689a2e77..b83b27e04f2a 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 47de3f93ff1e..f14a660a2a34 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; |