clang produces a false-positive warning as it fails to notice
that "lost = true" implies that "ret" is initialized:
net/rxrpc/output.c:402:6: error: variable 'ret' is used uninitialized whenever
'if' condition is true [-Werror,-Wsometimes-uninitialized]
if (lost)
^~~~
net/rxrpc/output.c:437:6: note: uninitialized use occurs here
if (ret >= 0) {
^~~
net/rxrpc/output.c:402:2: note: remove the 'if' if its condition is always false
if (lost)
^~~~~~~~~
net/rxrpc/output.c:339:9: note: initialize the variable 'ret' to silence this
warning
int ret, opt;
^
= 0
Rearrange the code to make that more obvious and avoid the warning.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
net/rxrpc/output.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 736aa9281100..004c762c2e8d 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -335,7 +335,6 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct
sk_buff *skb,
struct kvec iov[2];
rxrpc_serial_t serial;
size_t len;
- bool lost = false;
int ret, opt;
_enter(",{%d}", skb->len);
@@ -393,14 +392,14 @@ int rxrpc_send_data_packet(struct rxrpc_call *call,
struct sk_buff *skb,
static int lose;
if ((lose++ & 7) == 7) {
ret = 0;
- lost = true;
+ trace_rxrpc_tx_data(call, sp->hdr.seq, serial,
+ whdr.flags, retrans, true);
+ goto done;
}
}
- trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags,
- retrans, lost);
- if (lost)
- goto done;
+ trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags, retrans,
+ false);
/* send the packet with the don't fragment bit set if we currently
* think it's small enough */
--
2.20.0
