Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] tomoyo: fix clang pointer arithmetic warning | Date | Mon, 26 Oct 2020 22:52:31 +0100 |
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From: Arnd Bergmann <arnd@arndb.de>
clang warns about additions on NULL pointers being undefined in C:
security/tomoyo/securityfs_if.c:226:59: warning: arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension [-Wnull-pointer-arithmetic] securityfs_create_file(name, mode, parent, ((u8 *) NULL) + key,
Change the code to instead use a cast through uintptr_t to avoid the warning.
Fixes: 9590837b89aa ("Common functions for TOMOYO Linux.") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- security/tomoyo/securityfs_if.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c index 546281c5b233..0a5f00073ef1 100644 --- a/security/tomoyo/securityfs_if.c +++ b/security/tomoyo/securityfs_if.c @@ -223,7 +223,7 @@ static const struct file_operations tomoyo_operations = { static void __init tomoyo_create_entry(const char *name, const umode_t mode, struct dentry *parent, const u8 key) { - securityfs_create_file(name, mode, parent, ((u8 *) NULL) + key, + securityfs_create_file(name, mode, parent, (u8 *)(uintptr_t)key, &tomoyo_operations); } -- 2.27.0
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