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    SubjectRe: [PATCH 2/9] iwlwifi: 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/net/checksum.h:25,
    > from include/linux/skbuff.h:28,
    > from drivers/net/wireless/iwlwifi/iwl-agn-rs.c:28:
    > In function 'copy_from_user',
    > inlined from 'rs_sta_dbgfs_scale_table_write' at
    > drivers/net/wireless/iwlwifi/iwl-agn-rs.c:3099:
    > 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: Wey-Yi Guy <wey-yi.w.guy@intel.com>
    > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
    Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
    > ---
    > drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 2 +-
    > 1 files changed, 1 insertions(+), 1 deletions(-)
    >
    Thank you

    Wey



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