USB: Remove unneeded void * casts in core files

[linux-2.6-omap-h63xx.git] / kernel / sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index e236f98f7ec5d5460fa5eda7d97155bfb712df61..3f894775488dd7fb62907d149d0d1959b67de049 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -28,6 +28,7 @@
 #include <linux/tty.h>
 #include <linux/signal.h>
 #include <linux/cn_proc.h>
+#include <linux/getcpu.h>
 
 #include <linux/compat.h>
 #include <linux/syscalls.h>
@@ -2062,3 +2063,33 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
        }
        return error;
 }
+
+asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep,
+                          struct getcpu_cache __user *cache)
+{
+       int err = 0;
+       int cpu = raw_smp_processor_id();
+       if (cpup)
+               err |= put_user(cpu, cpup);
+       if (nodep)
+               err |= put_user(cpu_to_node(cpu), nodep);
+       if (cache) {
+               /*
+                * The cache is not needed for this implementation,
+                * but make sure user programs pass something
+                * valid. vsyscall implementations can instead make
+                * good use of the cache. Only use t0 and t1 because
+                * these are available in both 32bit and 64bit ABI (no
+                * need for a compat_getcpu). 32bit has enough
+                * padding
+                */
+               unsigned long t0, t1;
+               get_user(t0, &cache->t0);
+               get_user(t1, &cache->t1);
+               t0++;
+               t1++;
+               put_user(t0, &cache->t0);
+               put_user(t1, &cache->t1);
+       }
+       return err ? -EFAULT : 0;
+}