linux-kernel - [PATCH v2] wusb: use correct format characters

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190228122417.9318-1-louis@kragniz.eu>
Date:   Thu, 28 Feb 2019 12:24:17 +0000
From:   Louis Taylor <louis@...gniz.eu>
To:     gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com, ndesaulniers@...gle.com,
        jflat@...omium.org, Louis Taylor <louis@...gniz.eu>
Subject: [PATCH v2] wusb: use correct format characters

When compiling with -Wformat, clang warns:

./include/linux/usb/wusb.h:245:5: warning: format specifies type
'unsigned short' but the argument has type 'u8' (aka 'unsigned char')
[-Wformat]
  ckhdid->data[0],  ckhdid->data[1],
  ^~~~~~~~~~~~~~~

ckhdid->data is unconditionally defined as `u8 data[16]`, so this patch
updates the format characters to the correct one for unsigned char types.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Louis Taylor <louis@...gniz.eu>
---
 include/linux/usb/wusb.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/usb/wusb.h b/include/linux/usb/wusb.h
index 9e4a3213f2c2..625366d3499e 100644
--- a/include/linux/usb/wusb.h
+++ b/include/linux/usb/wusb.h
@@ -240,8 +240,8 @@ static inline size_t ckhdid_printf(char *pr_ckhdid, size_t size,
 				   const struct wusb_ckhdid *ckhdid)
 {
 	return scnprintf(pr_ckhdid, size,
-			 "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx "
-			 "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx",
+			 "%02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx "
+			 "%02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx",
 			 ckhdid->data[0],  ckhdid->data[1],
 			 ckhdid->data[2],  ckhdid->data[3],
 			 ckhdid->data[4],  ckhdid->data[5],
-- 
2.20.1