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/iwlegacy/iwl-4965-rs.c:28:
In function 'copy_from_user',
    inlined from 'iwl4965_rs_sta_dbgfs_scale_table_write' at
    drivers/net/wireless/iwlegacy/iwl-4965-rs.c:2616:
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: Johannes Berg <redacted>
Signed-off-by: Stephen Boyd <redacted>
---
 drivers/net/wireless/iwlegacy/iwl-4965-rs.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Stanislaw Gruszka [off-list ref] is the maintainer for iwlegacy

Thanks
Wey