linux-kernel - [PATCH v2 1/2] media: atomisp: Fix Wformat-truncation warning

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Message-Id: <20250401-v614-v2-1-53024c4fcdc7@chromium.org>
Date: Tue, 01 Apr 2025 14:17:54 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Hans Verkuil <hverkuil@...all.nl>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Andy Shevchenko <andy@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-staging@...ts.linux.dev, Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 1/2] media: atomisp: Fix Wformat-truncation warning

Gcc8 is convinced that we do not have enough space in dot_id_input_bin.
Extend the variable 17 bytes which is just used for debugging.

drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1336:9: warning: '(pipe' directive output may be truncated writing 5 bytes into a region of size between 1 and 74 [-Wformat-truncation=]

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
index 9818771a35e550c0ce98da826caff5f834867e7c..84220359c9576b0021ea7ac7ba13548bd77e49fd 100644
--- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
+++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
@@ -121,7 +121,8 @@ static const char *const pipe_id_to_str[] = {
 	/* [IA_CSS_PIPE_ID_YUVPP]     =*/ "yuvpp",
 };
 
-static char dot_id_input_bin[SH_CSS_MAX_BINARY_NAME + 10];
+/* 27 is combined length of _stage%d(pipe%d)\0. */
+static char dot_id_input_bin[SH_CSS_MAX_BINARY_NAME + 27];
 static char ring_buffer[200];
 
 void ia_css_debug_dtrace(unsigned int level, const char *fmt, ...)

-- 
2.49.0.472.ge94155a9ec-goog