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Message-ID: <152261522136.30503.14306229915768504613.stgit@warthog.procyon.org.uk> Date: Sun, 01 Apr 2018 21:40:21 +0100 From: David Howells <dhowells@...hat.com> To: linux-kernel@...r.kernel.org Subject: [PATCH 01/45] Use UINT_MAX, not -1, to represent an invalid UID, GID or project ID Use UINT_MAX, not -1, to represent an invalid UID, GID or project ID as the parameter is an unsigned integer. Signed-off-by: David Howells <dhowells@...hat.com> --- include/linux/projid.h | 2 +- include/linux/uidgid.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/projid.h b/include/linux/projid.h index 613730622a1a..7c60a79424c9 100644 --- a/include/linux/projid.h +++ b/include/linux/projid.h @@ -30,7 +30,7 @@ static inline projid_t __kprojid_val(kprojid_t projid) #define KPROJIDT_INIT(value) (kprojid_t){ value } -#define INVALID_PROJID KPROJIDT_INIT(-1) +#define INVALID_PROJID KPROJIDT_INIT(UINT_MAX) #define OVERFLOW_PROJID 65534 static inline bool projid_eq(kprojid_t left, kprojid_t right) diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h index b0542cd11aeb..75f602075b63 100644 --- a/include/linux/uidgid.h +++ b/include/linux/uidgid.h @@ -55,8 +55,8 @@ static inline gid_t __kgid_val(kgid_t gid) #define GLOBAL_ROOT_UID KUIDT_INIT(0) #define GLOBAL_ROOT_GID KGIDT_INIT(0) -#define INVALID_UID KUIDT_INIT(-1) -#define INVALID_GID KGIDT_INIT(-1) +#define INVALID_UID KUIDT_INIT(UINT_MAX) +#define INVALID_GID KGIDT_INIT(UINT_MAX) static inline bool uid_eq(kuid_t left, kuid_t right) {
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