Merge branch 'ipa-fixes'

Alex Elder says:

====================
net: fix net-next

David:	These patches resolve two issues caused by the IPA driver
	being incorporated into net-next.  I hope you will merge
	them as soon as you can.

The IPA driver was merged into net-next last week, but two problems
arise as a result, affecting net-next and linux-next:
  - The patch that defines field_max() was not incorporated into
    net-next, but is required by the IPA code
  - A patch that updates "sdm845.dtsi" *was* incorporated into
    net-next, but other changes to that file in the Qualcomm
    for-next branch lead to errors

Bjorn has agreed to incorporate the DTS file change into the
Qualcomm tree after it is reverted from net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/bitfield.h b/include/linux/bitfield.h
index 4bbb5f1c8b5b..48ea093ff04c 100644
--- a/include/linux/bitfield.h
+++ b/include/linux/bitfield.h
@@ -56,6 +56,19 @@
 	})
 
 /**
+ * FIELD_MAX() - produce the maximum value representable by a field
+ * @_mask: shifted mask defining the field's length and position
+ *
+ * FIELD_MAX() returns the maximum value that can be held in the field
+ * specified by @_mask.
+ */
+#define FIELD_MAX(_mask)						\
+	({								\
+		__BF_FIELD_CHECK(_mask, 0ULL, 0ULL, "FIELD_MAX: ");	\
+		(typeof(_mask))((_mask) >> __bf_shf(_mask));		\
+	})
+
+/**
  * FIELD_FIT() - check if value fits in the field
  * @_mask: shifted mask defining the field's length and position
  * @_val:  value to test against the field
@@ -110,6 +123,7 @@ static __always_inline u64 field_mask(u64 field)
 {
 	return field / field_multiplier(field);
 }
+#define field_max(field)	((typeof(field))field_mask(field))
 #define ____MAKE_OP(type,base,to,from)					\
 static __always_inline __##type type##_encode_bits(base v, base field)	\
 {									\