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rtc: class: make rtc_class constant

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Since commit 43a7206b09 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the rtc_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240305-class_cleanup-abelloni-v1-1-944c026137c8@marliere.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Ricardo B. Marliere
2024-03-05 15:22:28 -03:00
committed by Alexandre Belloni
parent 32a6be0858
commit 6b6ca09611
5 changed files with 17 additions and 12 deletions
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2
kernel/power/suspend_test.c
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@@ -201,7 +201,7 @@ static int __init test_suspend(void)
}
/* RTCs have initialized by now too ... can we use one? */
dev = class_find_device(rtc_class, NULL, NULL, has_wakealarm);
dev = class_find_device(&rtc_class, NULL, NULL, has_wakealarm);
if (dev) {
rtc = rtc_class_open(dev_name(dev));
put_device(dev);