Commit-ID: dce44e03b0a3448ad11ac6c6e0cbe299e0400791 Gitweb: http://git.kernel.org/tip/dce44e03b0a3448ad11ac6c6e0cbe299e0400791 Author: H. Peter Anvin <h...@linux.intel.com> AuthorDate: Sun, 2 Feb 2014 17:57:28 -0800 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Sun, 2 Feb 2014 18:00:29 -0800
compat: Fix sparse address space warnings In compat_sys_old_getrlimit() we pass a kernel pointer to sys_old_getrlimit() inside a set_fs() bracket. This is okay, so we can safely cast the affected pointer to __user. In compat_clock_nanosleep_restart(), the variable "rmtp" holds a user pointer. Annotate it as such. Both of these warnings are ancient, but were reported by Fengguang Wu's test system due to other changes. Signed-off-by: H. Peter Anvin <h...@linux.intel.com> Cc: Toyo Abe <to...@mvista.com> Link: http://lkml.kernel.org/n/tip-507h7cq5e45eg6ygtykon...@git.kernel.org --- kernel/compat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/compat.c b/kernel/compat.c index 3afc524..7076b57 100644 --- a/kernel/compat.c +++ b/kernel/compat.c @@ -451,7 +451,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource, mm_segment_t old_fs = get_fs(); set_fs(KERNEL_DS); - ret = sys_old_getrlimit(resource, &r); + ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r); set_fs(old_fs); if (!ret) { @@ -799,7 +799,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart) long err; mm_segment_t oldfs; struct timespec tu; - struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp; + struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp; restart->nanosleep.rmtp = (struct timespec __user *) &tu; oldfs = get_fs(); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
