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    SubjectRe: reducing stack usage in v4l?
    "Randy.Dunlap" <rddunlap@osdl.org> wrote:
    >
    > Hi,
    >
    > I was looking at stack usage in drivers/media/video/v4l1-compat.c::
    > v4l_compat_translate_ioctl(). It's 0x924 bytes on my peecee.
    >
    > It's fairly straightforward to change the stack space to
    > kmalloc() space, but some of these functions (ioctls) are
    > speed-critical, so I was wondering if the changes should still
    > be done, or done only in some cases and not others, or wait
    > until an oops is reported here....
    >

    Well the function is doing a memset() of 2k's worth of memory already,
    so it presumably doesn't care much.

    Your kmalloc will be a small cost compared with that.
    -
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