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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2022-03-01 10:12:55 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2022-03-01 10:12:55 +0300
commit1136fa0c07de570dc17858745af8be169d1440ba (patch)
tree3221b003517dd3cb13df5ba4b85637cd9ed82692 /include/linux/xarray.h
parentba115adf61b36b8c167126425a62b0efc23f72c0 (diff)
parent754e0b0e35608ed5206d6a67a791563c631cec07 (diff)
downloadlinux-1136fa0c07de570dc17858745af8be169d1440ba.tar.xz
Merge tag 'v5.17-rc4' into for-linus
Merge with mainline to get the Intel ASoC generic helpers header and other changes.
Diffstat (limited to 'include/linux/xarray.h')
-rw-r--r--include/linux/xarray.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/xarray.h b/include/linux/xarray.h
index a91e3d90df8a..d6d5da6ed735 100644
--- a/include/linux/xarray.h
+++ b/include/linux/xarray.h
@@ -1581,6 +1581,24 @@ static inline void xas_set(struct xa_state *xas, unsigned long index)
}
/**
+ * xas_advance() - Skip over sibling entries.
+ * @xas: XArray operation state.
+ * @index: Index of last sibling entry.
+ *
+ * Move the operation state to refer to the last sibling entry.
+ * This is useful for loops that normally want to see sibling
+ * entries but sometimes want to skip them. Use xas_set() if you
+ * want to move to an index which is not part of this entry.
+ */
+static inline void xas_advance(struct xa_state *xas, unsigned long index)
+{
+ unsigned char shift = xas_is_node(xas) ? xas->xa_node->shift : 0;
+
+ xas->xa_index = index;
+ xas->xa_offset = (index >> shift) & XA_CHUNK_MASK;
+}
+
+/**
* xas_set_order() - Set up XArray operation state for a multislot entry.
* @xas: XArray operation state.
* @index: Target of the operation.