From: Nathan Chancellor <nathan@kernel.org>
To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com
Cc: nathan@kernel.org, ndesaulniers@google.com, trix@redhat.com,
razor@blackwall.org, kerneljasonxing@gmail.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, patches@lists.linux.dev
Subject: [PATCH net-next] net: ethernet: ti: Fix format specifier in netcp_create_interface()
Date: Wed, 29 Mar 2023 08:08:01 -0700 [thread overview]
Message-ID: <20230329-net-ethernet-ti-wformat-v1-1-83d0f799b553@kernel.org> (raw)
After commit 3948b05950fd ("net: introduce a config option to tweak
MAX_SKB_FRAGS"), clang warns:
drivers/net/ethernet/ti/netcp_core.c:2085:4: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
MAX_SKB_FRAGS);
^~~~~~~~~~~~~
include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err'
dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
_p_func(dev, fmt, ##__VA_ARGS__); \
~~~ ^~~~~~~~~~~
include/linux/skbuff.h:352:23: note: expanded from macro 'MAX_SKB_FRAGS'
#define MAX_SKB_FRAGS CONFIG_MAX_SKB_FRAGS
^~~~~~~~~~~~~~~~~~~~
./include/generated/autoconf.h:11789:30: note: expanded from macro 'CONFIG_MAX_SKB_FRAGS'
#define CONFIG_MAX_SKB_FRAGS 17
^~
1 warning generated.
Follow the pattern of the rest of the tree by changing the specifier to
'%u' and casting MAX_SKB_FRAGS explicitly to 'unsigned int', which
eliminates the warning.
Fixes: 3948b05950fd ("net: introduce a config option to tweak MAX_SKB_FRAGS")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
I am a little confused as to why the solution for this warning is
casting to 'unsigned int' rather than just updating all the specifiers
to be '%d', as I do not see how MAX_SKB_FRAGS can be any type other than
just 'int' but I figured I would be consistent with the other fixes I
have seen around this issue.
---
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 1bb596a9d8a2..d829113c16ee 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -2081,8 +2081,8 @@ static int netcp_create_interface(struct netcp_device *netcp_device,
netcp->tx_pool_region_id = temp[1];
if (netcp->tx_pool_size < MAX_SKB_FRAGS) {
- dev_err(dev, "tx-pool size too small, must be at least %ld\n",
- MAX_SKB_FRAGS);
+ dev_err(dev, "tx-pool size too small, must be at least %u\n",
+ (unsigned int)MAX_SKB_FRAGS);
ret = -ENODEV;
goto quit;
}
---
base-commit: 3b064f541be822dc095991c6dda20a75eb51db5e
change-id: 20230329-net-ethernet-ti-wformat-acaa86350657
Best regards,
--
Nathan Chancellor <nathan@kernel.org>
next reply other threads:[~2023-03-29 15:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-29 15:08 Nathan Chancellor [this message]
2023-03-29 17:10 ` Nick Desaulniers
2023-03-29 17:41 ` Nick Desaulniers
2023-03-31 6:30 ` patchwork-bot+netdevbpf
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