From: Stephen Boyd Date: Thu, 12 May 2011 23:50:04 +0000 (-0700) Subject: iwlegacy: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8220ba3e2e671492b777159d8dac721f95f4a0ec;p=linux-beck.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 Signed-off-by: Stephen Boyd Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c b/drivers/net/wireless/iwlegacy/iwl-4965-rs.c index 89509392ef5d..24d149909ba3 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);