Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 32/36] dmaengine: idxd: use const struct bus_type * | Date | Mon, 13 Mar 2023 19:29:14 +0100 |
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In the functions unbind_store() and bind_store(), a struct bus_type * should be a const one, as the driver core bus functions used by this variable are expecting the pointer to be constant, and these functions do not modify the pointer at all.
Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Vinod Koul <vkoul@kernel.org> Cc: dmaengine@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- Note, this is a patch that is a prepatory cleanup as part of a larger series of patches that is working on resolving some old driver core design mistakes. It will build and apply cleanly on top of 6.3-rc2 on its own, but I'd prefer if I could take it through my driver-core tree so that the driver core changes can be taken through there for 6.4-rc1.
drivers/dma/idxd/compat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/idxd/compat.c b/drivers/dma/idxd/compat.c index 3df21615f888..5fd38d1b9d28 100644 --- a/drivers/dma/idxd/compat.c +++ b/drivers/dma/idxd/compat.c @@ -16,7 +16,7 @@ extern void device_driver_detach(struct device *dev); static ssize_t unbind_store(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = drv->bus; + const struct bus_type *bus = drv->bus; struct device *dev; int rc = -ENODEV; @@ -32,7 +32,7 @@ static DRIVER_ATTR_IGNORE_LOCKDEP(unbind, 0200, NULL, unbind_store); static ssize_t bind_store(struct device_driver *drv, const char *buf, size_t count) { - struct bus_type *bus = drv->bus; + const struct bus_type *bus = drv->bus; struct device *dev; struct device_driver *alt_drv = NULL; int rc = -ENODEV; -- 2.39.2
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