linux-next: build failure after merge of the kspp tree

Stephen Rothwell
2020-06-23T03:51:40Z

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Hi all,

After merging the kspp tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

net/core/devlink.c: In function 'devlink_nl_port_function_attrs_put':
net/core/devlink.c:586:3: warning: parameter names (without types) in function declaration
586 | int uninitialized_var(hw_addr_len);
| ^~~
net/core/devlink.c:589:65: error: 'hw_addr_len' undeclared (first use in this function); did you mean 'hw_addr'?
589 | err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack);
| ^~~~~~~~~~~
| hw_addr
net/core/devlink.c:589:65: note: each undeclared identifier is reported only once for each function it appears in

Caused by commit

2e6d06799c15 ("compiler: Remove uninitialized_var() macro")

interacting with commit

2a916ecc4056 ("net/devlink: Support querying hardware address of port function")

from the net-next tree.

I have added the following merge fix patch.

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 23 Jun 2020 13:43:06 +1000
Subject: [PATCH] net/core/devlink.c: remove new uninitialized_var() usage

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
net/core/devlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 455998a57671..6ae36808c152 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -583,7 +583,7 @@ devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *por

ops = devlink->ops;
if (ops->port_function_hw_addr_get) {
- int uninitialized_var(hw_addr_len);
+ int hw_addr_len;
u8 hw_addr[MAX_ADDR_LEN];

err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack);
--
2.27.0

--
Cheers,
Stephen Rothwell

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