[PATCH V2 1/2] powerpc/powernv/opal-dump : Handles opal_dump_info properly

[PATCH V2 1/2] powerpc/powernv/opal-dump : Handles opal_dump_info properly

[Mukesh Ojha]

Moves the return value check of 'opal_dump_info' to a proper place which
was previously unnecessarily filling all the dump info even on failure.

Signed-off-by: Mukesh Ojha <mukesh02@linux.vnet.ibm.com>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
---
 arch/powerpc/platforms/powernv/opal-dump.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index 4c82782..ae32212 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -225,13 +225,16 @@ static int64_t dump_read_info(uint32_t *dump_id, uint32_t *dump_size, uint32_t *
 	if (rc == OPAL_PARAMETER)
 		rc = opal_dump_info(&id, &size);
 
+	if (rc) {
+		pr_warn("%s: Failed to get dump info (%d)\n",
+			__func__, rc);
+		return rc;
+	}
+
 	*dump_id = be32_to_cpu(id);
 	*dump_size = be32_to_cpu(size);
 	*dump_type = be32_to_cpu(type);
 
-	if (rc)
-		pr_warn("%s: Failed to get dump info (%d)\n",
-			__func__, rc);
 	return rc;
 }
 
-- 
2.7.4

[PATCH V2 2/2] powerpc/powernv/opal-dump : Use IRQ_HANDLED instead of numbers in interrupt handler

[Mukesh Ojha]

Fixes: 8034f715f ("powernv/opal-dump: Convert to irq domain")

Converts all the return explicit number to a more proper IRQ_HANDLED,
which looks proper incase of interrupt handler returning case.

Here, It also removes error message like "nobody cared" which was
getting unveiled while returning -1 or 0 from handler.

Signed-off-by: Mukesh Ojha <mukesh02@linux.vnet.ibm.com>
Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/opal-dump.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index ae32212..71cf907 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -371,13 +371,12 @@ static irqreturn_t process_dump(int irq, void *data)
 {
 	int rc;
 	uint32_t dump_id, dump_size, dump_type;
-	struct dump_obj *dump;
 	char name[22];
 	struct kobject *kobj;
 
 	rc = dump_read_info(&dump_id, &dump_size, &dump_type);
 	if (rc != OPAL_SUCCESS)
-		return rc;
+		return IRQ_HANDLED;
 
 	sprintf(name, "0x%x-0x%x", dump_type, dump_id);
 
@@ -389,12 +388,10 @@ static irqreturn_t process_dump(int irq, void *data)
 	if (kobj) {
 		/* Drop reference added by kset_find_obj() */
 		kobject_put(kobj);
-		return 0;
+		return IRQ_HANDLED;
 	}
 
-	dump = create_dump_obj(dump_id, dump_size, dump_type);
-	if (!dump)
-		return -1;
+	create_dump_obj(dump_id, dump_size, dump_type);
 
 	return IRQ_HANDLED;
 }
-- 
2.7.4

Re: [V2, 1/2] powerpc/powernv/opal-dump : Handles opal_dump_info properly

[Michael Ellerman]

On Mon, 2017-02-20 at 13:22:10 UTC, Mukesh Ojha wrote:
> Moves the return value check of 'opal_dump_info' to a proper place which
> was previously unnecessarily filling all the dump info even on failure.
> 
> Signed-off-by: Mukesh Ojha <mukesh02@linux.vnet.ibm.com>
> Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
> Acked-by: Jeremy Kerr <jk@ozlabs.org>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/a5bbe8fd29f7e42fe5d26371adbad9

cheers