Re: [PATCH v3] usb: core: Add "quirks" parameter for usbcore

From: Kai-Heng Feng
Date: Sun Feb 25 2018 - 10:45:13 EST


On Sun, Feb 25, 2018 at 11:18 PM, Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
> On Sun, Feb 25, 2018 at 08:38:33PM +0800, Kai-Heng Feng wrote:
>> v2: Use in-kernel tolower() function.
>
> ... why are you using tolower at all?
>
> You've got 13 quirks already; you may need to use upper case as well
> before too long.

Makes sense. I'll remove tolower() in next version.

>
>> + quirk = vmalloc(sizeof(struct quirk_entry));
>
> vmalloc? For a struct that's 24 bytes? You know that allocates an
> entire 4k page, right?
>

Right, I'll use kmalloc() instead. Or is there any more efficient
malloc function?