From: Russell Currey <ruscur@russell.cc>
Date: Fri, 10 Feb 2023 08:03:53 +0000 (+1100)
Subject: powerpc/pseries: Log hcall return codes for PLPKS debug
X-Git-Tag: v6.3-rc1~87^2~44
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ebdcd42347157647ffe6c4d2808e4e5c146475d3;p=users%2Fdwmw2%2Flinux.git

powerpc/pseries: Log hcall return codes for PLPKS debug

The plpks code converts hypervisor return codes into their Linux
equivalents so that users can understand them.  Having access to the
original return codes is really useful for debugging, so add a
pr_debug() so we don't lose information from the conversion.

Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-19-ajd@linux.ibm.com
---

diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index cee06fb9a3707..e5755443d4a44 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -117,6 +117,8 @@ static int pseries_status_to_err(int rc)
 		err = -EINVAL;
 	}
 
+	pr_debug("Converted hypervisor code %d to Linux %d\n", rc, err);
+
 	return err;
 }