linux-kernel - [PATCH] mei: me: fix clang -Wformat warning

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Message-Id: <20220708203549.3834790-1-justinstitt@google.com>
Date:   Fri,  8 Jul 2022 13:35:49 -0700
From:   Justin Stitt <justinstitt@...gle.com>
To:     Tomas Winkler <tomas.winkler@...el.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, Justin Stitt <justinstitt@...gle.com>
Subject: [PATCH] mei: me: fix clang -Wformat warning

When building with Clang we encounter the following warning:
| drivers/misc/mei/hw-me.c:564:44: error: format specifies type 'unsigned
| short' but the argument has type 'int' [-Werror,-Wformat]
| dev_dbg(dev->dev, "empty slots = %hu.\n", empty_slots);

The format specifier used is `%hu` which specifies an unsigned short,
however, empty_slots is an int -- hence the warning.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Justin Stitt <justinstitt@...gle.com>
---
 drivers/misc/mei/hw-me.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index befa491e3344..3a95fe7d4e33 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -561,7 +561,7 @@ static int mei_me_hbuf_write(struct mei_device *dev,
 	dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM((struct mei_msg_hdr *)hdr));
 
 	empty_slots = mei_hbuf_empty_slots(dev);
-	dev_dbg(dev->dev, "empty slots = %hu.\n", empty_slots);
+	dev_dbg(dev->dev, "empty slots = %d.\n", empty_slots);
 
 	if (empty_slots < 0)
 		return -EOVERFLOW;
-- 
2.37.0.rc0.161.g10f37bed90-goog