From 805d7d23ef9806e47b550ad80270c4cea4ffc984 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 12 May 2011 16:50:05 -0700
Subject: [PATCH] iwlwifi: 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/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.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index dbe6295bbf23..91f26556ac23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -3086,7 +3086,7 @@ static ssize_t 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);