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* [PATCH] cxl: Rework error message for incompatible slots
@ 2020-04-07 11:56 Frederic Barrat
  2020-04-08  2:13 ` Andrew Donnellan
  2020-09-09 13:37 ` Michael Ellerman
  0 siblings, 2 replies; 4+ messages in thread
From: Frederic Barrat @ 2020-04-07 11:56 UTC (permalink / raw)
  To: linuxppc-dev, christophe_lombard, ajd; +Cc: stable

Improve the error message shown if a capi adapter is plugged on a
capi-incompatible slot directly under the PHB (no intermediate switch).

Fixes: 5632874311db ("cxl: Add support for POWER9 DD2")
Cc: stable@vger.kernel.org # 4.14+
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
---
 drivers/misc/cxl/pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 25a9dd9c0c1b..2ba899f5659f 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -393,8 +393,8 @@ int cxl_calc_capp_routing(struct pci_dev *dev, u64 *chipid,
 	*capp_unit_id = get_capp_unit_id(np, *phb_index);
 	of_node_put(np);
 	if (!*capp_unit_id) {
-		pr_err("cxl: invalid capp unit id (phb_index: %d)\n",
-		       *phb_index);
+		pr_err("cxl: No capp unit found for PHB[%lld,%d]. Make sure the adapter is on a capi-compatible slot\n",
+		       *chipid, *phb_index);
 		return -ENODEV;
 	}
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] cxl: Rework error message for incompatible slots
  2020-04-07 11:56 [PATCH] cxl: Rework error message for incompatible slots Frederic Barrat
@ 2020-04-08  2:13 ` Andrew Donnellan
  2020-04-08  7:09   ` Frederic Barrat
  2020-09-09 13:37 ` Michael Ellerman
  1 sibling, 1 reply; 4+ messages in thread
From: Andrew Donnellan @ 2020-04-08  2:13 UTC (permalink / raw)
  To: Frederic Barrat, linuxppc-dev, christophe_lombard; +Cc: stable

On 7/4/20 9:56 pm, Frederic Barrat wrote:
> Improve the error message shown if a capi adapter is plugged on a
> capi-incompatible slot directly under the PHB (no intermediate switch).
> 
> Fixes: 5632874311db ("cxl: Add support for POWER9 DD2")
> Cc: stable@vger.kernel.org # 4.14+
> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>

Seems fine to me, not sure if it needs to go to stable but I suppose 
this could be causing actual confusion out in the field?

Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>


-- 
Andrew Donnellan              OzLabs, ADL Canberra
ajd@linux.ibm.com             IBM Australia Limited


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] cxl: Rework error message for incompatible slots
  2020-04-08  2:13 ` Andrew Donnellan
@ 2020-04-08  7:09   ` Frederic Barrat
  0 siblings, 0 replies; 4+ messages in thread
From: Frederic Barrat @ 2020-04-08  7:09 UTC (permalink / raw)
  To: Andrew Donnellan, linuxppc-dev, christophe_lombard; +Cc: stable



Le 08/04/2020 à 04:13, Andrew Donnellan a écrit :
> On 7/4/20 9:56 pm, Frederic Barrat wrote:
>> Improve the error message shown if a capi adapter is plugged on a
>> capi-incompatible slot directly under the PHB (no intermediate switch).
>>
>> Fixes: 5632874311db ("cxl: Add support for POWER9 DD2")
>> Cc: stable@vger.kernel.org # 4.14+
>> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
> 
> Seems fine to me, not sure if it needs to go to stable but I suppose 
> this could be causing actual confusion out in the field?


Yes it does. The reason for this patch is it was hit by a customer.

   Fred


> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] cxl: Rework error message for incompatible slots
  2020-04-07 11:56 [PATCH] cxl: Rework error message for incompatible slots Frederic Barrat
  2020-04-08  2:13 ` Andrew Donnellan
@ 2020-09-09 13:37 ` Michael Ellerman
  1 sibling, 0 replies; 4+ messages in thread
From: Michael Ellerman @ 2020-09-09 13:37 UTC (permalink / raw)
  To: ajd, christophe_lombard, Frederic Barrat, linuxppc-dev; +Cc: stable

On Tue, 7 Apr 2020 13:56:01 +0200, Frederic Barrat wrote:
> Improve the error message shown if a capi adapter is plugged on a
> capi-incompatible slot directly under the PHB (no intermediate switch).

Applied to powerpc/next.

[1/1] cxl: Rework error message for incompatible slots
      https://git.kernel.org/powerpc/c/40ac790d99c6dd16b367d5c2339e446a5f1b0593

cheers

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-09-09 15:29 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-04-07 11:56 [PATCH] cxl: Rework error message for incompatible slots Frederic Barrat
2020-04-08  2:13 ` Andrew Donnellan
2020-04-08  7:09   ` Frederic Barrat
2020-09-09 13:37 ` Michael Ellerman

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