diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-01 15:17:08 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-21 12:01:00 +0200 |
commit | bb2501fbc378d981842395fbe88d6156128c3ca4 (patch) | |
tree | 63f0f49d951433960f7f27225c435d23a830727d | |
parent | 2ca88f8554ba61cbfdb0bfa830fedf0fd32ed44b (diff) | |
download | driver-core-class_cleanup.tar.gz |
crypto: qat: make adf_ctl_class constantclass_cleanup
Now that the driver core allows for struct class to be in read-only
memory, we should make all 'class' structures declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at runtime.
Cc: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adam Guerin <adam.guerin@intel.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Shashank Gupta <shashank.gupta@intel.com>
Cc: qat-linux@intel.com
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c index 29c4422f243c6..26a1662fafbb0 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c +++ b/drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c @@ -31,19 +31,22 @@ static const struct file_operations adf_ctl_ops = { .compat_ioctl = compat_ptr_ioctl, }; +static const struct class adf_ctl_class = { + .name = DEVICE_NAME, +}; + struct adf_ctl_drv_info { unsigned int major; struct cdev drv_cdev; - struct class *drv_class; }; static struct adf_ctl_drv_info adf_ctl_drv; static void adf_chr_drv_destroy(void) { - device_destroy(adf_ctl_drv.drv_class, MKDEV(adf_ctl_drv.major, 0)); + device_destroy(&adf_ctl_class, MKDEV(adf_ctl_drv.major, 0)); cdev_del(&adf_ctl_drv.drv_cdev); - class_destroy(adf_ctl_drv.drv_class); + class_unregister(&adf_ctl_class); unregister_chrdev_region(MKDEV(adf_ctl_drv.major, 0), 1); } @@ -51,17 +54,17 @@ static int adf_chr_drv_create(void) { dev_t dev_id; struct device *drv_device; + int ret; if (alloc_chrdev_region(&dev_id, 0, 1, DEVICE_NAME)) { pr_err("QAT: unable to allocate chrdev region\n"); return -EFAULT; } - adf_ctl_drv.drv_class = class_create(DEVICE_NAME); - if (IS_ERR(adf_ctl_drv.drv_class)) { - pr_err("QAT: class_create failed for adf_ctl\n"); + ret = class_register(&adf_ctl_class); + if (ret) goto err_chrdev_unreg; - } + adf_ctl_drv.major = MAJOR(dev_id); cdev_init(&adf_ctl_drv.drv_cdev, &adf_ctl_ops); if (cdev_add(&adf_ctl_drv.drv_cdev, dev_id, 1)) { @@ -69,7 +72,7 @@ static int adf_chr_drv_create(void) goto err_class_destr; } - drv_device = device_create(adf_ctl_drv.drv_class, NULL, + drv_device = device_create(&adf_ctl_class, NULL, MKDEV(adf_ctl_drv.major, 0), NULL, DEVICE_NAME); if (IS_ERR(drv_device)) { @@ -80,7 +83,7 @@ static int adf_chr_drv_create(void) err_cdev_del: cdev_del(&adf_ctl_drv.drv_cdev); err_class_destr: - class_destroy(adf_ctl_drv.drv_class); + class_unregister(&adf_ctl_class); err_chrdev_unreg: unregister_chrdev_region(dev_id, 1); return -EFAULT; |