--- v5
+++ v6
@@ -1,3 +1,5 @@
+From: Baruch Siach <baruchs-c@neureality.ai>
+
 DMA zones code assumes that DMA lower limit is zero. When there is no RAM 
 below 4GB, arm64 platform code sets DMA/DMA32 zone limits to cover the entire 
 RAM[0].
@@ -13,6 +15,12 @@
 
 With this series applied, the DMA zone covers the right RAM range for my 
 platform.
+
+v6:
+
+  * Drop the first patch; existing logic is just fine
+
+  * Modify powerpc code to avoid off by one issue
 
 v5:
 
@@ -65,21 +73,18 @@
 
 [3] https://lore.kernel.org/all/ZnH-VU2iz9Q2KLbr@arm.com/
 
-Baruch Siach (1):
-  dma: improve DMA zone selection
-
 Catalin Marinas (2):
   dma: replace zone_dma_bits by zone_dma_limit
   arm64: support DMA zone above 4GB
 
  arch/arm64/mm/init.c       | 32 ++++++++++----------------------
- arch/powerpc/mm/mem.c      |  9 ++++-----
+ arch/powerpc/mm/mem.c      |  5 ++++-
  arch/s390/mm/init.c        |  2 +-
  include/linux/dma-direct.h |  2 +-
- kernel/dma/direct.c        | 10 +++++-----
+ kernel/dma/direct.c        |  6 +++---
  kernel/dma/pool.c          |  4 ++--
- kernel/dma/swiotlb.c       |  8 ++++----
- 7 files changed, 27 insertions(+), 40 deletions(-)
+ kernel/dma/swiotlb.c       |  6 +++---
+ 7 files changed, 24 insertions(+), 33 deletions(-)
 
 
 base-commit: 8400291e289ee6b2bf9779ff1c83a291501f017b