An unnecessary typecast in dgrp_net_ops.c causes the following build error if compiled with W=1.
In function ‘copy_from_user’, inlined from ‘dgrp_net_ioctl’ at drivers/staging/dgrp/dgrp_net_ops.c:3408:21: arch/x86/include/asm/uaccess_32.h:211:26: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct Signed-off-by: Guenter Roeck <li...@roeck-us.net> --- drivers/staging/dgrp/dgrp_net_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c index e6018823..f364e8e 100644 --- a/drivers/staging/dgrp/dgrp_net_ops.c +++ b/drivers/staging/dgrp/dgrp_net_ops.c @@ -3405,7 +3405,7 @@ static long dgrp_net_ioctl(struct file *file, unsigned int cmd, if (size != sizeof(struct link_struct)) return -EINVAL; - if (copy_from_user((void *)(&link), (void __user *) arg, size)) + if (copy_from_user(&link, (void __user *)arg, size)) return -EFAULT; if (link.lk_fast_rate < 9600) -- 1.7.9.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/