linux-kernel - [PATCH] gpiolib: acpi: use correct format characters

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Message-Id: <20220316213055.2351342-1-morbo@google.com>
Date:   Wed, 16 Mar 2022 14:30:55 -0700
From:   Bill Wendling <morbo@...gle.com>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Cc:     Bill Wendling <morbo@...gle.com>
Subject: [PATCH] gpiolib: acpi: use correct format characters

When compiling with -Wformat, clang emits the following warning:

drivers/gpio/gpiolib-acpi.c:393:4: warning: format specifies type
'unsigned char' but the argument has type 'int' [-Wformat]
                        pin);
                        ^~~

The types of these arguments are unconditionally defined, so this patch
updates the format character to the correct ones for ints and unsigned
ints.

Link: ClangBuiltLinux/linux#378
Signed-off-by: Bill Wendling <morbo@...gle.com>
---
 drivers/gpio/gpiolib-acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index a5495ad31c9c..be6fb2ad2c4a 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -388,7 +388,7 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares,
 
 	if (pin <= 255) {
 		char ev_name[5];
-		sprintf(ev_name, "_%c%02hhX",
+		sprintf(ev_name, "_%c%02X",
 			agpio->triggering == ACPI_EDGE_SENSITIVE ? 'E' : 'L',
 			pin);
 		if (ACPI_SUCCESS(acpi_get_handle(handle, ev_name, &evt_handle)))
-- 
2.35.1.723.g4982287a31-goog