Messages in this thread | | | Subject | Re: [PATCH] block: bio: use struct_size() in kmalloc() | From | Jens Axboe <> | Date | Fri, 17 May 2019 15:17:07 -0600 |
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On 5/17/19 3:12 AM, xiaolinkui wrote: > One of the more common cases of allocation size calculations is finding > the size of a structure that has a zero-sized array at the end, along > with memory for some number of elements for that array. For example: > > struct foo { > int stuff; > struct boo entry[]; > }; > > instance = kmalloc(sizeof(struct foo) + count * sizeof(struct boo), GFP_KERNEL); > > Instead of leaving these open-coded and prone to type mistakes, we can > now use the new struct_size() helper: > > instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);
Applied, thanks.
-- Jens Axboe
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