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| author | Ivan Orlov <ivan.orlov0322@gmail.com> | 2023-06-20 20:34:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-23 10:27:02 +0200 |
| commit | 02fa4bcf4d15d7c93e6bb09d000d291dc2eb410e (patch) | |
| tree | e0c79f650b56ee617ae7a877f9dccb4505cba4c8 /drivers/sbus | |
| parent | fa50d6b8a5f762c62dc0049d3ede9f1e47cc47d3 (diff) | |
| download | lwn-02fa4bcf4d15d7c93e6bb09d000d291dc2eb410e.tar.gz lwn-02fa4bcf4d15d7c93e6bb09d000d291dc2eb410e.zip | |
oradax: make 'cl' a static const structure
Now that the driver core allows for struct class to be in read-only
memory, move the 'cl' structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at load time.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Cc: sparclinux@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/20230620183446.684061-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/sbus')
| -rw-r--r-- | drivers/sbus/char/oradax.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/sbus/char/oradax.c b/drivers/sbus/char/oradax.c index aafce8d00000..a536dd6f4f7c 100644 --- a/drivers/sbus/char/oradax.c +++ b/drivers/sbus/char/oradax.c @@ -226,8 +226,10 @@ static int dax_ccb_info(u64 ca, struct ccb_info_result *info); static int dax_ccb_kill(u64 ca, u16 *kill_res); static struct cdev c_dev; -static struct class *cl; static dev_t first; +static const struct class cl = { + .name = DAX_NAME, +}; static int max_ccb_version; static int dax_debug; @@ -323,14 +325,11 @@ static int __init dax_attach(void) goto done; } - cl = class_create(DAX_NAME); - if (IS_ERR(cl)) { - dax_err("class_create failed"); - ret = PTR_ERR(cl); + ret = class_register(&cl); + if (ret) goto class_error; - } - if (device_create(cl, NULL, first, NULL, dax_name) == NULL) { + if (device_create(&cl, NULL, first, NULL, dax_name) == NULL) { dax_err("device_create failed"); ret = -ENXIO; goto device_error; @@ -347,9 +346,9 @@ static int __init dax_attach(void) goto done; cdev_error: - device_destroy(cl, first); + device_destroy(&cl, first); device_error: - class_destroy(cl); + class_unregister(&cl); class_error: unregister_chrdev_region(first, 1); done: @@ -362,8 +361,8 @@ static void __exit dax_detach(void) { pr_info("Cleaning up DAX module\n"); cdev_del(&c_dev); - device_destroy(cl, first); - class_destroy(cl); + device_destroy(&cl, first); + class_unregister(&cl); unregister_chrdev_region(first, 1); } module_exit(dax_detach); |