[bootlin/training-materials updates] master: slides/kernel-driver-development-dma: Rephrase the sentence about the IO-MMU (a6b72e2a)

[Miquel Raynal]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/a6b72e2a2cd3d71a928cafd34f90213e31e78f0e

>---------------------------------------------------------------

commit a6b72e2a2cd3d71a928cafd34f90213e31e78f0e
Author: Miquel Raynal <miquel.raynal at bootlin.com>
Date:   Mon Apr 17 12:25:21 2023 +0200

    slides/kernel-driver-development-dma: Rephrase the sentence about the IO-MMU
    
    Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>


>---------------------------------------------------------------

a6b72e2a2cd3d71a928cafd34f90213e31e78f0e
 .../kernel-driver-development-dma/kernel-driver-development-dma.tex  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/slides/kernel-driver-development-dma/kernel-driver-development-dma.tex b/slides/kernel-driver-development-dma/kernel-driver-development-dma.tex
index 1433743d..d003dbf3 100644
--- a/slides/kernel-driver-development-dma/kernel-driver-development-dma.tex
+++ b/slides/kernel-driver-development-dma/kernel-driver-development-dma.tex
@@ -258,8 +258,9 @@ dma_unmap_sg(dev sglist, count, DMA_TO_DEVICE);
 
 \begin{frame}[fragile]
   \frametitle{\code{dma-mapping}: Setting up streaming I/O mappings}
-  Physical addresses with MMIO registers shall also be remapped in case
-  they are accessed through an IO-MMU
+  Physical addresses with MMIO registers shall always be remapped
+  (otherwise it would not work when they are accessed through an IO-MMU)
+  \vfill
 \begin{minted}[fontsize=\scriptsize]{c}
 #include <linux/dma-mapping.h>