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    SubjectRe: [PATCH 7/9] ASoC: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
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    On Thu, 2011-05-12 at 16:50 -0700, Stephen Boyd wrote:
    > Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following
    > warning:
    >
    > In file included from arch/x86/include/asm/uaccess.h:573,
    > from include/linux/poll.h:14,
    > from include/sound/pcm.h:29,
    > from include/sound/ac97_codec.h:31,
    > from sound/soc/soc-core.c:34:
    > In function 'copy_from_user',
    > inlined from 'codec_reg_write_file' at
    > sound/soc/soc-core.c:252:
    > arch/x86/include/asm/uaccess_64.h:65:
    > warning: call to 'copy_from_user_overflow' declared with
    > attribute warning: copy_from_user() buffer size is not provably
    > correct
    >
    > presumably due to buf_size being signed causing GCC to fail to
    > see that buf_size can't become negative.
    >
    > Cc: Liam Girdwood <lrg@slimlogic.co.uk>
    > Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
    > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

    Acked-by: Liam Girdwood <lrg@ti.com>



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