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commit 5d515ee40cb57ea5331998f27df7946a69f14dc3 upstream.
The kernel warning message is triggered, when SPR MCC is used.
[ 17.945331] ------------[ cut here ]------------
[ 17.946305] WARNING: CPU: 65 PID: 1 at
arch/x86/events/intel/uncore_discovery.c:184
intel_uncore_has_discovery_tables+0x4c0/0x65c
[ 17.946305] Modules linked in:
[ 17.946305] CPU: 65 PID: 1 Comm: swapper/0 Not tainted
5.4.17-2136.313.1-X10-2c+ #4
It's caused by the broken discovery table of UPI.
The discovery tables are from hardware. Except for dropping the broken
information, there is nothing Linux can do. Using WARN_ON_ONCE() is
overkilled.
Use the pr_info() to replace WARN_ON_ONCE(), and specify what uncore unit
is dropped and the reason.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Petlan <mpetlan@redhat.com>
Link: https://lore.kernel.org/r/20230112200105.733466-6-kan.liang@linux.intel.com
Cc: Mahmoud Adam <mngyadam@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
f5494d96bc