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  3. [PATCH 0/8] soc: remove direct accesses to of_root from drivers/soc/
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[PATCH 4/8] soc: fsl: guts: don't access of_root directly

Bartosz Golaszewski posted 8 patches 3 weeks ago
[PATCH 4/8] soc: fsl: guts: don't access of_root directly
Posted by Bartosz Golaszewski 3 weeks ago 
Don't access of_root directly as it reduces the build test coverage for
this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
to retrieve the relevant information.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---
 drivers/soc/fsl/guts.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 6bf3e6a980ffc67c21ed7b62b5b638e37f27454e..88ba32a40f6a27f8ffd13624e940aa0edf48586f 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -186,7 +186,6 @@ static int __init fsl_guts_init(void)
 	const struct fsl_soc_data *soc_data;
 	const struct of_device_id *match;
 	struct ccsr_guts __iomem *regs;
-	const char *machine = NULL;
 	struct device_node *np;
 	bool little_endian;
 	u64 soc_uid = 0;
@@ -217,13 +216,9 @@ static int __init fsl_guts_init(void)
 	if (!soc_dev_attr)
 		return -ENOMEM;
 
-	if (of_property_read_string(of_root, "model", &machine))
-		of_property_read_string_index(of_root, "compatible", 0, &machine);
-	if (machine) {
-		soc_dev_attr->machine = kstrdup(machine, GFP_KERNEL);
-		if (!soc_dev_attr->machine)
-			goto err_nomem;
-	}
+	ret = soc_device_get_machine(soc_dev_attr);
+	if (ret)
+		of_machine_get_compatible(&soc_dev_attr->machine);
 
 	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
 	if (soc_die) {
@@ -267,7 +262,6 @@ static int __init fsl_guts_init(void)
 err_nomem:
 	ret = -ENOMEM;
 err:
-	kfree(soc_dev_attr->machine);
 	kfree(soc_dev_attr->family);
 	kfree(soc_dev_attr->soc_id);
 	kfree(soc_dev_attr->revision);

-- 
2.47.3
Re: [PATCH 4/8] soc: fsl: guts: don't access of_root directly
Posted by LEROY Christophe 3 weeks ago 

Le 19/01/2026 à 11:40, Bartosz Golaszewski a écrit :
> Don't access of_root directly as it reduces the build test coverage for
> this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
> to retrieve the relevant information.
> 
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

> ---
>   drivers/soc/fsl/guts.c | 12 +++---------
>   1 file changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
> index 6bf3e6a980ffc67c21ed7b62b5b638e37f27454e..88ba32a40f6a27f8ffd13624e940aa0edf48586f 100644
> --- a/drivers/soc/fsl/guts.c
> +++ b/drivers/soc/fsl/guts.c
> @@ -186,7 +186,6 @@ static int __init fsl_guts_init(void)
>   	const struct fsl_soc_data *soc_data;
>   	const struct of_device_id *match;
>   	struct ccsr_guts __iomem *regs;
> -	const char *machine = NULL;
>   	struct device_node *np;
>   	bool little_endian;
>   	u64 soc_uid = 0;
> @@ -217,13 +216,9 @@ static int __init fsl_guts_init(void)
>   	if (!soc_dev_attr)
>   		return -ENOMEM;
>   
> -	if (of_property_read_string(of_root, "model", &machine))
> -		of_property_read_string_index(of_root, "compatible", 0, &machine);
> -	if (machine) {
> -		soc_dev_attr->machine = kstrdup(machine, GFP_KERNEL);
> -		if (!soc_dev_attr->machine)
> -			goto err_nomem;
> -	}
> +	ret = soc_device_get_machine(soc_dev_attr);
> +	if (ret)
> +		of_machine_get_compatible(&soc_dev_attr->machine);
>   
>   	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
>   	if (soc_die) {
> @@ -267,7 +262,6 @@ static int __init fsl_guts_init(void)
>   err_nomem:
>   	ret = -ENOMEM;
>   err:
> -	kfree(soc_dev_attr->machine);
>   	kfree(soc_dev_attr->family);
>   	kfree(soc_dev_attr->soc_id);
>   	kfree(soc_dev_attr->revision);
>
Re: [PATCH 4/8] soc: fsl: guts: don't access of_root directly
Posted by Christophe Leroy (CS GROUP) 3 weeks ago 

Le 19/01/2026 à 11:40, Bartosz Golaszewski a écrit :
> Don't access of_root directly as it reduces the build test coverage for
> this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
> to retrieve the relevant information.
> 
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

> ---
>   drivers/soc/fsl/guts.c | 12 +++---------
>   1 file changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
> index 6bf3e6a980ffc67c21ed7b62b5b638e37f27454e..88ba32a40f6a27f8ffd13624e940aa0edf48586f 100644
> --- a/drivers/soc/fsl/guts.c
> +++ b/drivers/soc/fsl/guts.c
> @@ -186,7 +186,6 @@ static int __init fsl_guts_init(void)
>   	const struct fsl_soc_data *soc_data;
>   	const struct of_device_id *match;
>   	struct ccsr_guts __iomem *regs;
> -	const char *machine = NULL;
>   	struct device_node *np;
>   	bool little_endian;
>   	u64 soc_uid = 0;
> @@ -217,13 +216,9 @@ static int __init fsl_guts_init(void)
>   	if (!soc_dev_attr)
>   		return -ENOMEM;
>   
> -	if (of_property_read_string(of_root, "model", &machine))
> -		of_property_read_string_index(of_root, "compatible", 0, &machine);
> -	if (machine) {
> -		soc_dev_attr->machine = kstrdup(machine, GFP_KERNEL);
> -		if (!soc_dev_attr->machine)
> -			goto err_nomem;
> -	}
> +	ret = soc_device_get_machine(soc_dev_attr);
> +	if (ret)
> +		of_machine_get_compatible(&soc_dev_attr->machine);
>   
>   	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
>   	if (soc_die) {
> @@ -267,7 +262,6 @@ static int __init fsl_guts_init(void)
>   err_nomem:
>   	ret = -ENOMEM;
>   err:
> -	kfree(soc_dev_attr->machine);
>   	kfree(soc_dev_attr->family);
>   	kfree(soc_dev_attr->soc_id);
>   	kfree(soc_dev_attr->revision);
>

Patchew 2.1-devel-b67e4c2

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