[PATCH] powerpc: powermac: Use of_get_cpu_hwid() to read CPU node 'reg'

Replace open coded reading of CPU nodes' "reg" properties with
of_get_cpu_hwid() dedicated for this purpose.

Signed-off-by: Rob Herring <robh@kernel.org>
---
 arch/powerpc/platforms/powermac/feature.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 0382d20b5619..dd508c2fcb5a 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c

@@ -1053,11 +1053,11 @@ core99_reset_cpu(struct device_node *node, long param, long value)
 		return -ENODEV;
 
 	for_each_of_cpu_node(np) {
-		const u32 *num = of_get_property(np, "reg", NULL);
 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
-		if (num == NULL || rst == NULL)
+		if (!rst)
 			continue;
-		if (param == *num) {
+		if (param == of_get_cpu_hwid(np, 0)) {
+			of_node_put(np);
 			reset_io = *rst;
 			break;
 		}

@@ -1499,11 +1499,11 @@ static long g5_reset_cpu(struct device_node *node, long param, long value)
 		return -ENODEV;
 
 	for_each_of_cpu_node(np) {
-		const u32 *num = of_get_property(np, "reg", NULL);
 		const u32 *rst = of_get_property(np, "soft-reset", NULL);
-		if (num == NULL || rst == NULL)
+		if (!rst)
 			continue;
-		if (param == *num) {
+		if (param == of_get_cpu_hwid(np, 0)) {
+			of_node_put(np);
 			reset_io = *rst;
 			break;
 		}

-- 
2.39.2

On Sun, 19 Mar 2023 09:59:31 -0500, Rob Herring wrote:

Replace open coded reading of CPU nodes' "reg" properties with
of_get_cpu_hwid() dedicated for this purpose.

Applied to powerpc/next.

[1/1] powerpc: powermac: Use of_get_cpu_hwid() to read CPU node 'reg'
      https://git.kernel.org/powerpc/c/bc1cf75027585f8d87f94e464ee5909acf885a8c

cheers

Le 03/07/2023 à 07:26, Michael Ellerman a écrit :

On Sun, 19 Mar 2023 09:59:31 -0500, Rob Herring wrote:

quoted

Replace open coded reading of CPU nodes' "reg" properties with
of_get_cpu_hwid() dedicated for this purpose.

Applied to powerpc/next.

[1/1] powerpc: powermac: Use of_get_cpu_hwid() to read CPU node 'reg'
       https://git.kernel.org/powerpc/c/bc1cf75027585f8d87f94e464ee5909acf885a8c

cheers

Hi,

I guess, that it does not really matter, but shouldn't the 
of_node_put() be *after* the "reset_io = *rst;" statements to be 
absolutely safe?


(This change is in my backlog and I have apparently never proposed it)

CJ

Le 03/07/2023 à 19:01, Christophe JAILLET a écrit :

Le 03/07/2023 à 07:26, Michael Ellerman a écrit :

quoted

On Sun, 19 Mar 2023 09:59:31 -0500, Rob Herring wrote:

quoted

Replace open coded reading of CPU nodes' "reg" properties with
of_get_cpu_hwid() dedicated for this purpose.

Applied to powerpc/next.

[1/1] powerpc: powermac: Use of_get_cpu_hwid() to read CPU node 'reg'
       
https://git.kernel.org/powerpc/c/bc1cf75027585f8d87f94e464ee5909acf885a8c

cheers

Hi,

I guess, that it does not really matter, but shouldn't the of_node_put() 
be *after* the "reset_io = *rst;" statements to be absolutely safe?


(This change is in my backlog and I have apparently never proposed it)

Well, in fact is was in:
https://lore.kernel.org/all/f2186955f310494f10990b5c402ada164d7834b8.1619188632.git.christophe.jaillet@wanadoo.fr/

CJ

Christophe JAILLET [off-list ref] writes:

Le 03/07/2023 à 07:26, Michael Ellerman a écrit :

quoted

On Sun, 19 Mar 2023 09:59:31 -0500, Rob Herring wrote:

quoted

Replace open coded reading of CPU nodes' "reg" properties with
of_get_cpu_hwid() dedicated for this purpose.

Applied to powerpc/next.

[1/1] powerpc: powermac: Use of_get_cpu_hwid() to read CPU node 'reg'
       https://git.kernel.org/powerpc/c/bc1cf75027585f8d87f94e464ee5909acf885a8c

cheers

Hi,

I guess, that it does not really matter, but shouldn't the 
of_node_put() be *after* the "reset_io = *rst;" statements to be 
absolutely safe?

Technically yes.

(This change is in my backlog and I have apparently never proposed it)

Can you rebase and resend?

cheers