Hi Tom,

Quoting Tom Herbert <[email protected]>:

Please combine these related patches fixing BUG in rxrpc into a patch
set with proper annotation,


I can do that.

Also, can any of these BUG_ONs be replaced by WARN_ONs? Warnings are
generally preferable to crashing the system.


What about WARN_ON_ONCE instead?

Thanks
--
Gustavo A. R. Silva

Tom


On Tue, Oct 24, 2017 at 9:20 AM, Gustavo A. R. Silva
<[email protected]> wrote:
Use BUG_ON instead of if condition followed by BUG.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
 net/rxrpc/recvmsg.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c
index bdece21..9598b92 100644
--- a/net/rxrpc/recvmsg.c
+++ b/net/rxrpc/recvmsg.c
@@ -243,8 +243,7 @@ static int rxrpc_verify_packet(struct rxrpc_call *call, struct sk_buff *skb,
         */
        if ((annotation & RXRPC_RX_ANNO_JUMBO) > 1) {
                __be16 tmp;
-               if (skb_copy_bits(skb, offset - 2, &tmp, 2) < 0)
-                       BUG();
+               BUG_ON(skb_copy_bits(skb, offset - 2, &tmp, 2) < 0);
                cksum = ntohs(tmp);
                seq += (annotation & RXRPC_RX_ANNO_JUMBO) - 1;
        }
@@ -503,8 +502,7 @@ int rxrpc_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,

        release_sock(&rx->sk);

-       if (test_bit(RXRPC_CALL_RELEASED, &call->flags))
-               BUG();
+       BUG_ON(test_bit(RXRPC_CALL_RELEASED, &call->flags));

        if (test_bit(RXRPC_CALL_HAS_USERID, &call->flags)) {
                if (flags & MSG_CMSG_COMPAT) {
--
2.7.4







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