Messages in this thread | | | From | Max Kellermann <> | Date | Mon, 9 Oct 2023 20:01:43 +0200 | Subject | Re: [PATCH 1/7] drivers/rtc/sysfs: move code to count_attribute_groups() |
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On Mon, Oct 9, 2023 at 7:24 PM Greg KH <gregkh@linuxfoundation.org> wrote: > What 3 different purposes?
The variable gets initialized 3 times with different (unrelated) values:
1. count old rtc->dev.groups 2. count grps 3. allocate new rtc->dev.groups
This coding style is confusing and error prone. The code gets simpler with this patch, because the cognitive load of understanding a "count_attribute_groups()" call is lower than reading the "while" loop and figuring out why it's there.
But I really wrote this patch because after making "rtc->dev.groups" const, I cannot any longer assign it to "groups", because that variable must remain non-const.
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