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    Subject[PATCH 1/9] iwlegacy: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
    Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following

    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/iwlegacy/iwl-4965-rs.c:28:
    In function 'copy_from_user',
    inlined from 'iwl4965_rs_sta_dbgfs_scale_table_write' at
    warning: call to 'copy_from_user_overflow' declared with
    attribute warning: copy_from_user() buffer size is not provably

    presumably due to buf_size being signed causing GCC to fail to
    see that buf_size can't become negative.

    Cc: Johannes Berg <>
    Signed-off-by: Stephen Boyd <>
    drivers/net/wireless/iwlegacy/iwl-4965-rs.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c b/drivers/net/wireless/iwlegacy/iwl-4965-rs.c
    index 31ac672..cc4751c 100644
    --- a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c
    +++ b/drivers/net/wireless/iwlegacy/iwl-4965-rs.c
    @@ -2604,7 +2604,7 @@ static ssize_t iwl4965_rs_sta_dbgfs_scale_table_write(struct file *file,
    struct iwl_lq_sta *lq_sta = file->private_data;
    struct iwl_priv *priv;
    char buf[64];
    - int buf_size;
    + size_t buf_size;
    u32 parsed_rate;
    struct iwl_station_priv *sta_priv =
    container_of(lq_sta, struct iwl_station_priv, lq_sta);
    Sent by an employee of the Qualcomm Innovation Center, Inc.
    The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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