diff options
| author | Madalin Bucur <madalin.bucur@freescale.com> | 2014-11-19 11:06:54 (GMT) |
|---|---|---|
| committer | Madalin Bucur <madalin.bucur@freescale.com> | 2015-02-25 16:26:58 (GMT) |
| commit | 8e0373b33dfc8d955a92c57895b96b83bf3efb6d (patch) | |
| tree | 54043bc5b1b1f61d33bc1082056026839db16601 /include | |
| parent | b5b07e785e25f7c1f34881de5c1c420835df1c30 (diff) | |
| download | linux-fsl-qoriq-8e0373b33dfc8d955a92c57895b96b83bf3efb6d.tar.xz | |
devres: add devm_alloc_percpu()
Introduce managed counterparts for alloc_percpu() and free_percpu().
Add devm_alloc_percpu() and devm_free_percpu() into the managed
interfaces list.
Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
Change-Id: I93546348e7b0e1974fda8b6c7a3b3710ce45b724
Reviewed-on: http://git.am.freescale.net:8181/24140
Reviewed-by: Madalin-Cristian Bucur <madalin.bucur@freescale.com>
Tested-by: Madalin-Cristian Bucur <madalin.bucur@freescale.com>
Conflicts:
Documentation/driver-model/devres.txt
drivers/base/devres.c
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 4713d9c..78bbb4d 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -631,6 +631,25 @@ void __iomem *devm_request_and_ioremap(struct device *dev, int devm_add_action(struct device *dev, void (*action)(void *), void *data); void devm_remove_action(struct device *dev, void (*action)(void *), void *data); +/** + * devm_alloc_percpu - Resource-managed alloc_percpu + * @dev: Device to allocate per-cpu memory for + * @type: Type to allocate per-cpu memory for + * + * Managed alloc_percpu. Per-cpu memory allocated with this function is + * automatically freed on driver detach. + * + * RETURNS: + * Pointer to allocated memory on success, NULL on failure. + */ +#define devm_alloc_percpu(dev, type) \ + (typeof(type) __percpu *)__devm_alloc_percpu(dev, sizeof(type), \ + __alignof__(type)) + +void __percpu *__devm_alloc_percpu(struct device *dev, size_t size, + size_t align); +void devm_free_percpu(struct device *dev, void __percpu *pdata); + struct device_dma_parameters { /* * a low level driver may set these to teach IOMMU code about |