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Subject[PATCH v2 1/3] can-isotp: Change error format from decimal to symbolic error names
Date
This patch changes the format string for errors from
decimal %d to symbolic error names %pe to achieve
more comprehensive log messages.

Signed-off-by: Patrick Menschel <menschel.p@posteo.de>
---
net/can/isotp.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 9f94ad3ca..2c4f84fac 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -221,8 +221,8 @@ static int isotp_send_fc(struct sock *sk, int ae, u8 flowstatus)

can_send_ret = can_send(nskb, 1);
if (can_send_ret)
- pr_notice_once("can-isotp: %s: can_send_ret %d\n",
- __func__, can_send_ret);
+ pr_notice_once("can-isotp: %s: can_send_ret %pe\n",
+ __func__, ERR_PTR(can_send_ret));

dev_put(dev);

@@ -798,8 +798,8 @@ static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer)

can_send_ret = can_send(skb, 1);
if (can_send_ret)
- pr_notice_once("can-isotp: %s: can_send_ret %d\n",
- __func__, can_send_ret);
+ pr_notice_once("can-isotp: %s: can_send_ret %pe\n",
+ __func__, ERR_PTR(can_send_ret));

if (so->tx.idx >= so->tx.len) {
/* we are done */
@@ -946,8 +946,8 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
err = can_send(skb, 1);
dev_put(dev);
if (err) {
- pr_notice_once("can-isotp: %s: can_send_ret %d\n",
- __func__, err);
+ pr_notice_once("can-isotp: %s: can_send_ret %pe\n",
+ __func__, ERR_PTR(err));
return err;
}

--
2.17.1
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