linux-kernel - Re: [PATCH] tools: hv: Fix a complier warning in the fcopy uio daemon

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Message-ID: <20240913073058.GA24840@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net>
Date: Fri, 13 Sep 2024 00:30:58 -0700
From: Saurabh Singh Sengar <ssengar@...ux.microsoft.com>
To: Dexuan Cui <decui@...rosoft.com>
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Long Li <longli@...rosoft.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"open list:Hyper-V/Azure CORE AND DRIVERS" <linux-hyperv@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>, stable@...r.kernel.org
Subject: Re: [PATCH] tools: hv: Fix a complier warning in the fcopy uio daemon

On Tue, Sep 10, 2024 at 12:44:32AM +0000, Dexuan Cui wrote:
> hv_fcopy_uio_daemon.c:436:53: warning: '%s' directive output may be truncated
> writing up to 14 bytes into a region of size 10 [-Wformat-truncation=]
>   436 |  snprintf(uio_dev_path, sizeof(uio_dev_path), "/dev/%s", uio_name);

Makefile today doesn't have -Wformat-truncation flag enabled, I tried to add
-Wformat-truncation=2 but I don't see any error in this file.

Do you mind sharing more details how you get this error ?

- Saurabh