[PATCH] staging: ccree: fix type mismatch warning

[PATCH] staging: ccree: fix type mismatch warning

[Arnd Bergmann]

__dump_byte_array used to be hidden, but is now visible to the compiler
and causes a harmless warning:

drivers/staging/ccree/ssi_driver.c:82:6: error: conflicting types for '__dump_byte_array'
drivers/staging/ccree/ssi_driver.c: In function '__dump_byte_array':
drivers/staging/ccree/ssi_driver.c:89:41: error: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}' [-Werror=format=]

This changes the prototype in the header to match that of the actual
function on all architectures, and the format string to match the
argument.

Fixes: 3f268f5d6669 ("staging: ccree: turn compile time debug log to params")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/staging/ccree/ssi_driver.c | 2 +-
 drivers/staging/ccree/ssi_driver.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c
index 56b5d45a205c..1254c6922d50 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -86,7 +86,7 @@ void __dump_byte_array(const char *name, const u8 *buf, size_t len)
 	if (!buf)
 		return;
 
-	snprintf(prefix, sizeof(prefix), "%s[%lu]: ", name, len);
+	snprintf(prefix, sizeof(prefix), "%s[%zu]: ", name, len);
 
 	print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_ADDRESS, 16, 1, buf,
 		       len, false);
diff --git a/drivers/staging/ccree/ssi_driver.h b/drivers/staging/ccree/ssi_driver.h
index 5a56f7a76b71..e1406d6e1ab2 100644
--- a/drivers/staging/ccree/ssi_driver.h
+++ b/drivers/staging/ccree/ssi_driver.h
@@ -175,9 +175,9 @@ static inline struct device *drvdata_to_dev(struct cc_drvdata *drvdata)
 }
 
 void __dump_byte_array(const char *name, const u8 *the_array,
-		       unsigned long size);
+		       size_t size);
 static inline void dump_byte_array(const char *name, const u8 *the_array,
-				   unsigned long size)
+				   size_t size)
 {
 	if (cc_dump_bytes)
 		__dump_byte_array(name, the_array, size);
-- 
2.9.0

Re: [PATCH] staging: ccree: fix type mismatch warning

[Greg Kroah-Hartman]

On Thu, Dec 21, 2017 at 02:31:20PM +0100, Arnd Bergmann wrote:
> __dump_byte_array used to be hidden, but is now visible to the compiler
> and causes a harmless warning:
> 
> drivers/staging/ccree/ssi_driver.c:82:6: error: conflicting types for '__dump_byte_array'
> drivers/staging/ccree/ssi_driver.c: In function '__dump_byte_array':
> drivers/staging/ccree/ssi_driver.c:89:41: error: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}' [-Werror=format=]
> 
> This changes the prototype in the header to match that of the actual
> function on all architectures, and the format string to match the
> argument.
> 
> Fixes: 3f268f5d6669 ("staging: ccree: turn compile time debug log to params")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/staging/ccree/ssi_driver.c | 2 +-
>  drivers/staging/ccree/ssi_driver.h | 4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)

Should already be fixed, sorry.

greg k-h