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Message-ID: <20250502172217.GO3339421@horms.kernel.org>
Date: Fri, 2 May 2025 18:22:17 +0100
From: Simon Horman <horms@...nel.org>
To: Haiyue Wang <haiyuewa@....com>
Cc: netdev@...r.kernel.org, Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Shuah Khan <shuah@...nel.org>, Jens Axboe <axboe@...nel.dk>,
David Wei <dw@...idwei.uk>,
"open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net v1] selftests: iou-zcrx: Clean up build warnings for
error format
On Fri, May 02, 2025 at 12:22:20PM +0800, Haiyue Wang wrote:
> Clean up two build warnings:
>
> [1]:
> iou-zcrx.c: In function ‘process_recvzc’:
> iou-zcrx.c:263:37: warning: too many arguments for
> format [-Wformat-extra-args]
> 263 | error(1, 0, "payload mismatch at ", i);
> | ^~~~~~~~~~~~~~~~~~~~~~
>
> [2]:
> iou-zcrx.c: In function ‘run_client’:
> iou-zcrx.c:357:47: warning: format ‘%d’ expects argument of
> type ‘int’, but argument 4 has
> type ‘ssize_t’ {aka ‘long int’} [-Wformat=]
> 357 | error(1, 0, "send(): %d", sent);
> | ~^ ~~~~
> | | |
> | int ssize_t {aka long int}
> | %ld
>
> Signed-off-by: Haiyue Wang <haiyuewa@....com>
Hi Haiyue Wang,
This feels more like a clean-up for net-next than a bug-fix to net.
> ---
> tools/testing/selftests/drivers/net/hw/iou-zcrx.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/drivers/net/hw/iou-zcrx.c b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c
> index c26b4180eddd..19e1ff45deb4 100644
> --- a/tools/testing/selftests/drivers/net/hw/iou-zcrx.c
> +++ b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c
> @@ -260,7 +260,7 @@ static void process_recvzc(struct io_uring *ring, struct io_uring_cqe *cqe)
>
> for (i = 0; i < n; i++) {
> if (*(data + i) != payload[(received + i)])
> - error(1, 0, "payload mismatch at ", i);
> + error(1, 0, "payload mismatch at %d", i);
> }
> received += n;
>
> @@ -354,7 +354,7 @@ static void run_client(void)
> chunk = min_t(ssize_t, cfg_payload_len, to_send);
> res = send(fd, src, chunk, 0);
> if (res < 0)
> - error(1, 0, "send(): %d", sent);
> + error(1, 0, "send(): %ld", sent);
As the type of sent is ssize_t I think that "%zd" would be best here.
> sent += res;
> to_send -= res;
> }
> --
> 2.49.0
>
>
--
pw-bot: changes-requested
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