[bootlin/training-materials updates] master: Kernel slides: fix infos about virtual IRQs (0c637a71)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/0c637a715ac5955dc5728ac63387e46da530e84b

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

commit 0c637a715ac5955dc5728ac63387e46da530e84b
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Tue Apr 27 16:41:13 2021 +0200

    Kernel slides: fix infos about virtual IRQs
    
    - Infos no longer available in /sys/kernel/debug/irq_domain_mapping
    - Physical IRQ numbers are available in individual files instead
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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

0c637a715ac5955dc5728ac63387e46da530e84b
 .../kernel-driver-development-interrupts.tex                       | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex b/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
index f858563a..f324bf08 100644
--- a/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
+++ b/slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex
@@ -100,10 +100,11 @@ IPI6:          0          0          0          0  completion interrupts
 Err:          0
 \end{verbatim}
 \end{block}
-  \footnotesize
+  {\footnotesize
   Note: interrupt numbers shown on the left-most column are virtual
-  numbers when the Device Tree is used. The real physical interrupt
-  numbers can be seen in \code{/sys/kernel/debug/irq_domain_mapping}.
+  numbers when the Device Tree is used. The physical interrupt
+  numbers can be found in \code{/sys/kernel/debug/irq/irqs/<nr>} files
+  when \kconfigval{CONFIG_GENERIC_IRQ_DEBUGFS}{y}.}
 \end{frame}
 
 \begin{frame}[fragile]