---

yaml --- r: 363303 b: refs/heads/master c: e9f5b81 h: refs/heads/master i: 363301: dc2294e 363299: 7d4da03 363295: 64359e3 v: v3
git-mirror · Mar 6, 2013 · c6fb8aa · c6fb8aa
1 parent 718afeb
commit c6fb8aa
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Showing 3 changed files with 28 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5db5a20a50cfd078c78b13a988f237cca81aedc5
+refs/heads/master: e9f5b8145af9a0ee34e98cf01dcd3afb87225538
diff --git a/trunk/drivers/staging/android/ashmem.c b/trunk/drivers/staging/android/ashmem.c
@@ -702,6 +702,23 @@ static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	return ret;
 }
 
+/* support of 32bit userspace on 64bit platforms */
+#ifdef CONFIG_COMPAT
+static long compat_ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+
+	switch (cmd) {
+	case COMPAT_ASHMEM_SET_SIZE:
+		cmd = ASHMEM_SET_SIZE;
+		break;
+	case COMPAT_ASHMEM_SET_PROT_MASK:
+		cmd = ASHMEM_SET_PROT_MASK;
+		break;
+	}
+	return ashmem_ioctl(file, cmd, arg);
+}
+#endif
+
 static const struct file_operations ashmem_fops = {
 	.owner = THIS_MODULE,
 	.open = ashmem_open,
@@ -710,7 +727,9 @@ static const struct file_operations ashmem_fops = {
 	.llseek = ashmem_llseek,
 	.mmap = ashmem_mmap,
 	.unlocked_ioctl = ashmem_ioctl,
-	.compat_ioctl = ashmem_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = compat_ashmem_ioctl,
+#endif
 };
 
 static struct miscdevice ashmem_misc = {

diff --git a/trunk/drivers/staging/android/ashmem.h b/trunk/drivers/staging/android/ashmem.h
@@ -14,6 +14,7 @@
 
 #include <linux/limits.h>
 #include <linux/ioctl.h>
+#include <linux/compat.h>
 
 #define ASHMEM_NAME_LEN		256
 
@@ -45,4 +46,10 @@ struct ashmem_pin {
 #define ASHMEM_GET_PIN_STATUS	_IO(__ASHMEMIOC, 9)
 #define ASHMEM_PURGE_ALL_CACHES	_IO(__ASHMEMIOC, 10)
 
+/* support of 32bit userspace on 64bit platforms */
+#ifdef CONFIG_COMPAT
+#define COMPAT_ASHMEM_SET_SIZE		_IOW(__ASHMEMIOC, 3, compat_size_t)
+#define COMPAT_ASHMEM_SET_PROT_MASK	_IOW(__ASHMEMIOC, 5, unsigned int)
+#endif
+
 #endif	/* _LINUX_ASHMEM_H */