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authorDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
committerDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
commitc78a85a8430e35aecd53e190a2f6b999062b1037 (patch)
treefbd69827579db437492fb77b5faa53814114bed3 /include/linux/ccp.h
parent133800d1f0288b9ddfc0d0aded10d9efa82d5b8c (diff)
parentde06dbfa7861c9019eedefc0c356ba86e5098f1b (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'include/linux/ccp.h')
-rw-r--r--include/linux/ccp.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/ccp.h b/include/linux/ccp.h
index 7f437036baa4..915af3095b39 100644
--- a/include/linux/ccp.h
+++ b/include/linux/ccp.h
@@ -33,6 +33,18 @@ struct ccp_cmd;
*/
int ccp_present(void);
+#define CCP_VSIZE 16
+#define CCP_VMASK ((unsigned int)((1 << CCP_VSIZE) - 1))
+#define CCP_VERSION(v, r) ((unsigned int)((v << CCP_VSIZE) \
+ | (r & CCP_VMASK)))
+
+/**
+ * ccp_version - get the version of the CCP
+ *
+ * Returns a positive version number, or zero if no CCP
+ */
+unsigned int ccp_version(void);
+
/**
* ccp_enqueue_cmd - queue an operation for processing by the CCP
*
@@ -65,6 +77,11 @@ static inline int ccp_present(void)
return -ENODEV;
}
+static inline unsigned int ccp_version(void)
+{
+ return 0;
+}
+
static inline int ccp_enqueue_cmd(struct ccp_cmd *cmd)
{
return -ENODEV;