Re: [PATCH] netdev: octeon_mgmt: Fix ISO C90 forbids mixed declarations and code warning.

From: David Daney
Date: Mon Sep 15 2014 - 12:47:40 EST


On 09/15/2014 09:23 AM, David Daney wrote:
From: David Daney <david.daney@xxxxxxxxxx>

We were getting:

drivers/net/ethernet/octeon/octeon_mgmt.c:295:4: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]

The idea of the fix from Joe Perches.

Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
Cc: Heinrich Schuchardt <xypron.glpk@xxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>

Actually Aaro Koskinen's similar patch was just committed to the net.git tree (commit 208f7ca4d4a6886256763c9c073775c5fdaf47eb), so this whole thing seems to have been an exercise in time wasting.

I don't really care which patch goes in at this point. So I defer to davem et al.

David Daney


---

This patch should supersede previous patches from Heinrich Schuchardt,
and may be preferable as it touches fewer lines of code.

drivers/net/ethernet/octeon/octeon_mgmt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index 979c698..5e10c1d 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -290,12 +290,12 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
/* Read the hardware TX timestamp if one was recorded */
if (unlikely(re.s.tstamp)) {
struct skb_shared_hwtstamps ts;
- memset(&ts, 0, sizeof(ts));
/* Read the timestamp */
u64 ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port));
/* Remove the timestamp from the FIFO */
cvmx_write_csr(CVMX_MIXX_TSCTL(p->port), 0);
/* Tell the kernel about the timestamp */
+ memset(&ts, 0, sizeof(ts));
ts.hwtstamp = ns_to_ktime(ns);
skb_tstamp_tx(skb, &ts);
}


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