Eric Lee / smarc-ti-linux-kernel

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Commit dce44e03b0a3448ad11ac6c6e0cbe299e0400791

Authored by H. Peter Anvin
1 parent 81993e81a9
Exists in master and in 13 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.15.y, ti-lsk-linux-4.1.y

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 <hpa@linux.intel.com>
Cc: Toyo Abe <toyoa@mvista.com>
Link: http://lkml.kernel.org/n/tip-507h7cq5e45eg6ygtykon3bf@git.kernel.org

Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff

... ... @@ -451,7 +451,7 @@
451 451 mm_segment_t old_fs = get_fs();
452 452  
453 453 set_fs(KERNEL_DS);
454   - ret = sys_old_getrlimit(resource, &r);
  454 + ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r);
455 455 set_fs(old_fs);
456 456  
457 457 if (!ret) {
... ... @@ -799,7 +799,7 @@
799 799 long err;
800 800 mm_segment_t oldfs;
801 801 struct timespec tu;
802   - struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp;
  802 + struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
803 803  
804 804 restart->nanosleep.rmtp = (struct timespec __user *) &tu;
805 805 oldfs = get_fs();