From df561f6688fef775baa341a0f5d960becd248b11 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Sun, 23 Aug 2020 17:36:59 -0500 Subject: treewide: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva --- ipc/sem.c | 4 ++-- ipc/shm.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'ipc') diff --git a/ipc/sem.c b/ipc/sem.c index 8c0244e0365e..f6c30a85dadf 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -1691,7 +1691,7 @@ static long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg, int v case IPC_SET: if (copy_semid_from_user(&semid64, p, version)) return -EFAULT; - /* fall through */ + fallthrough; case IPC_RMID: return semctl_down(ns, semid, cmd, &semid64); default: @@ -1805,7 +1805,7 @@ static long compat_ksys_semctl(int semid, int semnum, int cmd, int arg, int vers case IPC_SET: if (copy_compat_semid_from_user(&semid64, p, version)) return -EFAULT; - /* fallthru */ + fallthrough; case IPC_RMID: return semctl_down(ns, semid, cmd, &semid64); default: diff --git a/ipc/shm.c b/ipc/shm.c index f1ed36e3ac9f..e25c7c6106bc 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1179,7 +1179,7 @@ static long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf, int ver case IPC_SET: if (copy_shmid_from_user(&sem64, buf, version)) return -EFAULT; - /* fallthru */ + fallthrough; case IPC_RMID: return shmctl_down(ns, shmid, cmd, &sem64); case SHM_LOCK: @@ -1374,7 +1374,7 @@ static long compat_ksys_shmctl(int shmid, int cmd, void __user *uptr, int versio case IPC_SET: if (copy_compat_shmid_from_user(&sem64, uptr, version)) return -EFAULT; - /* fallthru */ + fallthrough; case IPC_RMID: return shmctl_down(ns, shmid, cmd, &sem64); case SHM_LOCK: -- cgit v1.2.3 From fff1662cc423be00c5a7dffc6cf2332161c882d6 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Fri, 4 Sep 2020 16:35:46 -0700 Subject: ipc: adjust proc_ipc_sem_dointvec definition to match prototype Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") changed ctl_table.proc_handler to take a kernel pointer. Adjust the signature of proc_ipc_sem_dointvec to match ctl_table.proc_handler which fixes the following sparse error/warning: ipc/ipc_sysctl.c:94:47: warning: incorrect type in argument 3 (different address spaces) ipc/ipc_sysctl.c:94:47: expected void *buffer ipc/ipc_sysctl.c:94:47: got void [noderef] __user *buffer ipc/ipc_sysctl.c:194:35: warning: incorrect type in initializer (incompatible argument 3 (different address spaces)) ipc/ipc_sysctl.c:194:35: expected int ( [usertype] *proc_handler )( ... ) ipc/ipc_sysctl.c:194:35: got int ( * )( ... ) Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") Signed-off-by: Tobias Klauser Signed-off-by: Andrew Morton Cc: Christoph Hellwig Cc: Alexander Viro Link: https://lkml.kernel.org/r/20200825105846.5193-1-tklauser@distanz.ch Signed-off-by: Linus Torvalds --- ipc/ipc_sysctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'ipc') diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index d1b8644bfb88..3f312bf2b116 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -85,7 +85,7 @@ static int proc_ipc_auto_msgmni(struct ctl_table *table, int write, } static int proc_ipc_sem_dointvec(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret, semmni; struct ipc_namespace *ns = current->nsproxy->ipc_ns; -- cgit v1.2.3