From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 12 May 2011 23:50:04 +0000 (-0700)
Subject: iwlegacy: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
X-Git-Tag: v3.0-rc1~377^2~54^2^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8220ba3e2e671492b777159d8dac721f95f4a0ec;p=pandora-kernel.git

iwlegacy: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning

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 <johannes.berg@intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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