linux-kernel - [tip: irq/core] genirq: Bump the size of the local variable for sprintf()

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Message-ID: <174731963480.406.8669837030668986806.tip-bot2@tip-bot2>
Date: Thu, 15 May 2025 14:33:54 -0000
From: "tip-bot2 for Andy Shevchenko" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: kernel test robot <lkp@...el.com>,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
 linux-kernel@...r.kernel.org, maz@...nel.org
Subject:
 [tip: irq/core] genirq: Bump the size of the local variable for sprintf()

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     a4a39c81e1043b153bde3ef5cb3cf94222ffd918
Gitweb:        https://git.kernel.org/tip/a4a39c81e1043b153bde3ef5cb3cf94222ffd918
Author:        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
AuthorDate:    Thu, 15 May 2025 11:55:16 +03:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Thu, 15 May 2025 16:28:09 +02:00

genirq: Bump the size of the local variable for sprintf()

GCC is not happy about a sprintf() call on a buffer that might be too small
for the given formatting string.

kernel/irq/debugfs.c:233:26: warning: 'sprintf' may write a terminating nul past the end of the destination [-Wformat-overflow=]

Fix this by bumping the size of the local variable for sprintf().

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/all/20250515085516.2913290-1-andriy.shevchenko@linux.intel.com
Closes: https://lore.kernel.org/oe-kbuild-all/202505151057.xbyXAbEn-lkp@intel.com/
---
 kernel/irq/debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index 3d6a5b3..3527def 100644
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -225,7 +225,7 @@ void irq_debugfs_copy_devname(int irq, struct device *dev)
 
 void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *desc)
 {
-	char name [10];
+	char name [12];
 
 	if (!irq_dir || !desc || desc->debugfs_file)
 		return;