[F][SRU][PATCH 1/1] selftests/eeh: Skip ahci adapters

[Po-Hsu Lin]

From: Michael Ellerman <mpe at ellerman.id.au>

BugLink: https://bugs.launchpad.net/bugs/1916468

The ahci driver doesn't support error recovery, and if your root
filesystem is attached to it the eeh-basic.sh test will likely kill
your machine.

So skip any device we see using the ahci driver.

Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
Link: https://lore.kernel.org/r/20200326061144.2006522-1-mpe@ellerman.id.au
(cherry picked from commit bbe9064f30f06e7791d04f9f61a842226a6a44fe)
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
---
 tools/testing/selftests/powerpc/eeh/eeh-basic.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/powerpc/eeh/eeh-basic.sh b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh
index cf001a2..0d783e1 100755
--- a/tools/testing/selftests/powerpc/eeh/eeh-basic.sh
+++ b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh
@@ -43,6 +43,11 @@ for dev in `ls -1 /sys/bus/pci/devices/ | grep '\.0$'` ; do
 		continue;
 	fi
 
+	if [ "ahci" = "$(basename $(realpath /sys/bus/pci/devices/$dev/driver))" ] ; then
+		echo "$dev, Skipped: ahci doesn't support recovery"
+		continue
+	fi
+
 	# Don't inject errosr into an already-frozen PE. This happens with
 	# PEs that contain multiple PCI devices (e.g. multi-function cards)
 	# and injecting new errors during the recovery process will probably
-- 
2.7.4