sysdev/kernel: building: Clearly show the specificity of ARM64 about …

…defconfigs

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

slides/sysdev-kernel-building/sysdev-kernel-building.tex

@@ -146,7 +146,7 @@ \subsection{Kernel configuration}
 	  kernel:\\
 	  \code{cp /boot/config-`uname -r` .config}
      \end{itemize}
-  \item Embedded platform case (at least on ARM 32 bit):
+   \item Embedded platform case:
      \begin{itemize}
        \item Default configurations stored in-tree as minimal
          configuration files (only listing settings that are different
@@ -156,6 +156,12 @@ \subsection{Kernel configuration}
        \item To load a default configuration file, just run
          \code{make foo_defconfig} (will erase your current
          \code{.config}!)
+         \begin{itemize}
+           \item On ARM 32-bit, there is usually one default
+             configuration per CPU family
+           \item On ARM 64-bit, there is only one big default
+             configuration to customize
+         \end{itemize}
      \end{itemize}
   \end{itemize}
   Now, you can make configuration changes (\code{make menuconfig}...).