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authorFlorian Fainelli <f.fainelli@gmail.com>2022-08-05 16:07:36 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-01 16:31:09 +0200
commit9b03e79300100bcd36e77c8ce94ee7f47cd2f528 (patch)
tree67944707ddb2a20a0b7e5cdf0a6f7eca87a1c1c5 /drivers
parent25e9fbf0fd38868a429feabc38abebfc6dbf6542 (diff)
downloadlinux-9b03e79300100bcd36e77c8ce94ee7f47cd2f528.tar.gz
arch_topology: Silence early cacheinfo errors when non-existent
Architectures which do not have cacheinfo such as ARM 32-bit would spit
out the following during boot:

 Early cacheinfo failed, ret = -2

Treat -ENOENT specifically to silence this error since it means that the
platform does not support reporting its cache information.

Fixes: 3fcbf1c77d08 ("arch_topology: Fix cache attributes detection in the CPU hotplug path")
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Michael Walle <michael@walle.cc>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220805230736.1562801-1-f.fainelli@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/arch_topology.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 0424b59b695e..eaa1b8d2d39d 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -735,7 +735,7 @@ void update_siblings_masks(unsigned int cpuid)
 	int cpu, ret;
 
 	ret = detect_cache_attributes(cpuid);
-	if (ret)
+	if (ret && ret != -ENOENT)
 		pr_info("Early cacheinfo failed, ret = %d\n", ret);
 
 	/* update core and thread sibling masks */