Re: [PATCH 4.9 54/66] net: netcp: Fix an error message
From: Marion & Christophe JAILLET <hidden>
Date: 2021-05-31 18:43:56
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Le 31/05/2021 à 15:14, Greg Kroah-Hartman a écrit :
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From: Christophe JAILLET <redacted> [ Upstream commit ddb6e00f8413e885ff826e32521cff7924661de0 ] 'ret' is known to be 0 here. The expected error code is stored in 'tx_pipe->dma_queue', so use it instead. While at it, switch from %d to %pe which is more user friendly. Fixes: 84640e27f230 ("net: netcp: Add Keystone NetCP core ethernet driver") Signed-off-by: Christophe JAILLET <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/ti/netcp_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index 32516661f180..a55e83a0946a 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c@@ -1325,8 +1325,8 @@ int netcp_txpipe_open(struct netcp_tx_pipe *tx_pipe) tx_pipe->dma_queue = knav_queue_open(name, tx_pipe->dma_queue_id, KNAV_QUEUE_SHARED); if (IS_ERR(tx_pipe->dma_queue)) { - dev_err(dev, "Could not open DMA queue for channel \"%s\": %d\n", - name, ret); + dev_err(dev, "Could not open DMA queue for channel \"%s\": %pe\n", + name, tx_pipe->dma_queue); ret = PTR_ERR(tx_pipe->dma_queue); goto err; }
Hi, Apparently %pe is only supported up to (including) 5.5. It is not part of 5.4.123. So this patch should not be backported here or should be backported differently, ie: leave dev_err as-is move "ret = PTR_ERR(tx_pipe->dma_queue);" 1 line above (or %pe should be backported first) PS: adding Dan Carpenter because we had a small discussion about some potential backport issue when, using %pe CJ