• Stephen Boyd's avatar
    ASoC: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning · 34e268d8
    Stephen Boyd authored
    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.
    Acked-by: default avatarLiam Girdwood <lrg@ti.com>
    Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
    Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
    34e268d8
soc-core.c 100 KB