diff --git a/fs/bcachefs/bkey.h b/fs/bcachefs/bkey.h
index 518450209236..831be01809f2 100644
--- a/fs/bcachefs/bkey.h
+++ b/fs/bcachefs/bkey.h
@@ -92,19 +92,15 @@ enum bkey_lr_packed {
 #define bkey_lr_packed(_l, _r)						\
 	((_l)->format + ((_r)->format << 1))
 
-#define bkey_copy(_dst, _src)					\
-do {								\
-	BUILD_BUG_ON(!type_is(_dst, struct bkey_i *) &&		\
-		     !type_is(_dst, struct bkey_packed *));	\
-	BUILD_BUG_ON(!type_is(_src, struct bkey_i *) &&		\
-		     !type_is(_src, struct bkey_packed *));	\
-	EBUG_ON((u64 *) (_dst) > (u64 *) (_src) &&		\
-		(u64 *) (_dst) < (u64 *) (_src) +		\
-		((struct bkey *) (_src))->u64s);		\
-								\
-	memcpy_u64s_small((_dst), (_src),			\
-			  ((struct bkey *) (_src))->u64s);	\
-} while (0)
+static inline void bkey_p_copy(struct bkey_packed *dst, const struct bkey_packed *src)
+{
+	memcpy_u64s_small(dst, src, src->u64s);
+}
+
+static inline void bkey_copy(struct bkey_i *dst, const struct bkey_i *src)
+{
+	memcpy_u64s_small(dst, src, src->k.u64s);
+}
 
 struct btree;
 
diff --git a/fs/bcachefs/bkey_sort.c b/fs/bcachefs/bkey_sort.c
index b9aa027c881b..bcca9e76a0b4 100644
--- a/fs/bcachefs/bkey_sort.c
+++ b/fs/bcachefs/bkey_sort.c
@@ -106,7 +106,7 @@ bch2_key_sort_fix_overlapping(struct bch_fs *c, struct bset *dst,
 	while ((k = sort_iter_peek(iter))) {
 		if (!bkey_deleted(k) &&
 		    !should_drop_next_key(iter)) {
-			bkey_copy(out, k);
+			bkey_p_copy(out, k);
 			btree_keys_account_key_add(&nr, 0, out);
 			out = bkey_p_next(out);
 		}
@@ -137,7 +137,7 @@ bch2_sort_repack(struct bset *dst, struct btree *src,
 			continue;
 
 		if (!transform)
-			bkey_copy(out, in);
+			bkey_p_copy(out, in);
 		else if (bch2_bkey_transform(out_f, out, bkey_packed(in)
 					     ? in_f : &bch2_bkey_format_current, in))
 			out->format = KEY_FORMAT_LOCAL_BTREE;
@@ -191,7 +191,7 @@ unsigned bch2_sort_keys(struct bkey_packed *dst,
 			memcpy_u64s_small(out, in, bkeyp_key_u64s(f, in));
 			set_bkeyp_val_u64s(f, out, 0);
 		} else {
-			bkey_copy(out, in);
+			bkey_p_copy(out, in);
 		}
 		out->needs_whiteout |= needs_whiteout;
 		out = bkey_p_next(out);
diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c
index 4d2d6f93500d..37d896edb06e 100644
--- a/fs/bcachefs/btree_io.c
+++ b/fs/bcachefs/btree_io.c
@@ -184,7 +184,7 @@ static void bch2_sort_whiteouts(struct bch_fs *c, struct btree *b)
 	k = new_whiteouts;
 
 	while (ptrs != ptrs_end) {
-		bkey_copy(k, *ptrs);
+		bkey_p_copy(k, *ptrs);
 		k = bkey_p_next(k);
 		ptrs++;
 	}
@@ -260,7 +260,7 @@ static bool bch2_drop_whiteouts(struct btree *b, enum compact_mode mode)
 			n = bkey_p_next(k);
 
 			if (!bkey_deleted(k)) {
-				bkey_copy(out, k);
+				bkey_p_copy(out, k);
 				out = bkey_p_next(out);
 			} else {
 				BUG_ON(k->needs_whiteout);
diff --git a/fs/bcachefs/btree_update_interior.h b/fs/bcachefs/btree_update_interior.h
index d92b3cf5f5e0..c2ffeb30884d 100644
--- a/fs/bcachefs/btree_update_interior.h
+++ b/fs/bcachefs/btree_update_interior.h
@@ -303,7 +303,7 @@ static inline void push_whiteout(struct bch_fs *c, struct btree *b,
 	k.needs_whiteout = true;
 
 	b->whiteout_u64s += k.u64s;
-	bkey_copy(unwritten_whiteouts_start(c, b), &k);
+	bkey_p_copy(unwritten_whiteouts_start(c, b), &k);
 }
 
 /*