* [PATCH] checks: Suppress warnings on overlay fragments
@ 2023-01-11 2:34 Qun-Wei Lin
[not found] ` <20230111023417.24141-1-qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Qun-Wei Lin @ 2023-01-11 2:34 UTC (permalink / raw)
To: david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+
Cc: devicetree-compiler-u79uwXL29TY76Z2rM5mHXA,
casper.li-NuS5LvNUpcJWk0Htik3J/w,
chinwen.chang-NuS5LvNUpcJWk0Htik3J/w,
kuan-ying.lee-NuS5LvNUpcJWk0Htik3J/w,
ivan.tseng-NuS5LvNUpcJWk0Htik3J/w,
ladon.huang-NuS5LvNUpcJWk0Htik3J/w, Qun-Wei Lin
The overlay fragment is a speial case where some properties are not
present in the overlay source file, but in the base file.
example:
+-----------------------------+--------------------+
| base.dts | overlay.dts |
+-----------------------------+--------------------+
| /dts-v1/; | /dts-v1/; |
| | /plugin/; |
| /{ | |
| parent: test { | &parent { |
| #address-cells = <1>; | child@0 { |
| #size-cells = <0>; | reg = <0x0>; |
| }; | }; |
| }; | }; |
+-----------------------------+--------------------+
It will cause the following false alarms when compiling the overlay dts.
1. /fragment@0/__overlay__: Character '_' not recommended in node name
2. /fragment@0/__overlay__: Relying on default #address-cells value
3. /fragment@0/__overlay__: Relying on default #size-cells value
4. /fragment@0/__overlay__:reg: property has invalid length (4 bytes)
(#address-cells == 2, #size-cells == 1)
This workaround will fix them by skip checking for node named __overlay__.
Signed-off-by: Qun-Wei Lin <qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
checks.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/checks.c b/checks.c
index 9f31d26..afa8f23 100644
--- a/checks.c
+++ b/checks.c
@@ -325,6 +325,9 @@ static void check_node_name_chars_strict(struct check *c, struct dt_info *dti,
{
int n = strspn(node->name, c->data);
+ if (streq(node->name, "__overlay__"))
+ return;
+
if (n < node->basenamelen)
FAIL(c, dti, node, "Character '%c' not recommended in node name",
node->name[n]);
@@ -767,6 +770,9 @@ static void check_reg_format(struct check *c, struct dt_info *dti,
return;
}
+ if (streq(node->parent->name, "__overlay__"))
+ return;
+
if (prop->val.len == 0)
FAIL_PROP(c, dti, node, prop, "property is empty");
@@ -1197,6 +1203,10 @@ static void check_avoid_default_addr_size(struct check *c, struct dt_info *dti,
if (!node->parent)
return; /* Ignore root node */
+
+ if (streq(node->parent->name, "__overlay__"))
+ return;
+
reg = get_property(node, "reg");
ranges = get_property(node, "ranges");
--
2.18.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] checks: Suppress warnings on overlay fragments
[not found] ` <20230111023417.24141-1-qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
@ 2023-02-01 11:23 ` Qun-wei Lin (林群崴)
2023-02-01 20:29 ` Rob Herring
1 sibling, 0 replies; 3+ messages in thread
From: Qun-wei Lin (林群崴) @ 2023-02-01 11:23 UTC (permalink / raw)
To: david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org
Cc: devicetree-compiler-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Casper Li (李中榮),
Kuan-Ying Lee (李冠穎),
Ivan Tseng (曾志軒),
Chinwen Chang (張錦文),
Ladon Huang (黃柏諭)
On Wed, 2023-01-11 at 10:34 +0800, Qun-Wei Lin wrote:
> The overlay fragment is a speial case where some properties are not
> present in the overlay source file, but in the base file.
>
> example:
> +-----------------------------+--------------------+
> > base.dts | overlay.dts |
>
> +-----------------------------+--------------------+
> > /dts-v1/; | /dts-v1/; |
> > | /plugin/; |
> > /{ | |
> > parent: test { | &parent { |
> > #address-cells = <1>; | child@0 { |
> > #size-cells = <0>; | reg = <0x0>; |
> > }; | }; |
> > }; | }; |
>
> +-----------------------------+--------------------+
>
> It will cause the following false alarms when compiling the overlay
> dts.
>
> 1. /fragment@0/__overlay__: Character '_' not recommended in node
> name
> 2. /fragment@0/__overlay__: Relying on default #address-cells value
> 3. /fragment@0/__overlay__: Relying on default #size-cells value
> 4. /fragment@0/__overlay__:reg: property has invalid length (4 bytes)
> (#address-cells == 2, #size-cells == 1)
>
> This workaround will fix them by skip checking for node named
> __overlay__.
>
> Signed-off-by: Qun-Wei Lin <qun-wei.lin@mediatek.com>
> ---
> checks.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/checks.c b/checks.c
> index 9f31d26..afa8f23 100644
> --- a/checks.c
> +++ b/checks.c
> @@ -325,6 +325,9 @@ static void check_node_name_chars_strict(struct
> check *c, struct dt_info *dti,
> {
> int n = strspn(node->name, c->data);
>
> + if (streq(node->name, "__overlay__"))
> + return;
> +
> if (n < node->basenamelen)
> FAIL(c, dti, node, "Character '%c' not recommended in
> node name",
> node->name[n]);
> @@ -767,6 +770,9 @@ static void check_reg_format(struct check *c,
> struct dt_info *dti,
> return;
> }
>
> + if (streq(node->parent->name, "__overlay__"))
> + return;
> +
> if (prop->val.len == 0)
> FAIL_PROP(c, dti, node, prop, "property is empty");
>
> @@ -1197,6 +1203,10 @@ static void
> check_avoid_default_addr_size(struct check *c, struct dt_info *dti,
> if (!node->parent)
> return; /* Ignore root node */
>
> +
> + if (streq(node->parent->name, "__overlay__"))
> + return;
> +
> reg = get_property(node, "reg");
> ranges = get_property(node, "ranges");
>
Hi, maintainers, kindly ping...
Please help to review this patch.
Thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] checks: Suppress warnings on overlay fragments
[not found] ` <20230111023417.24141-1-qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2023-02-01 11:23 ` Qun-wei Lin (林群崴)
@ 2023-02-01 20:29 ` Rob Herring
1 sibling, 0 replies; 3+ messages in thread
From: Rob Herring @ 2023-02-01 20:29 UTC (permalink / raw)
To: Qun-Wei Lin
Cc: david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+,
devicetree-compiler-u79uwXL29TY76Z2rM5mHXA,
casper.li-NuS5LvNUpcJWk0Htik3J/w,
chinwen.chang-NuS5LvNUpcJWk0Htik3J/w,
kuan-ying.lee-NuS5LvNUpcJWk0Htik3J/w,
ivan.tseng-NuS5LvNUpcJWk0Htik3J/w,
ladon.huang-NuS5LvNUpcJWk0Htik3J/w
On Tue, Jan 10, 2023 at 8:35 PM Qun-Wei Lin <qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> wrote:
>
> The overlay fragment is a speial case where some properties are not
special
> present in the overlay source file, but in the base file.
>
> example:
> +-----------------------------+--------------------+
> | base.dts | overlay.dts |
> +-----------------------------+--------------------+
> | /dts-v1/; | /dts-v1/; |
> | | /plugin/; |
> | /{ | |
> | parent: test { | &parent { |
> | #address-cells = <1>; | child@0 { |
> | #size-cells = <0>; | reg = <0x0>; |
> | }; | }; |
> | }; | }; |
> +-----------------------------+--------------------+
>
> It will cause the following false alarms when compiling the overlay dts.
>
> 1. /fragment@0/__overlay__: Character '_' not recommended in node name
> 2. /fragment@0/__overlay__: Relying on default #address-cells value
> 3. /fragment@0/__overlay__: Relying on default #size-cells value
> 4. /fragment@0/__overlay__:reg: property has invalid length (4 bytes)
> (#address-cells == 2, #size-cells == 1)
>
> This workaround will fix them by skip checking for node named __overlay__.
>
> Signed-off-by: Qun-Wei Lin <qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
> ---
> checks.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/checks.c b/checks.c
> index 9f31d26..afa8f23 100644
> --- a/checks.c
> +++ b/checks.c
> @@ -325,6 +325,9 @@ static void check_node_name_chars_strict(struct check *c, struct dt_info *dti,
> {
> int n = strspn(node->name, c->data);
>
> + if (streq(node->name, "__overlay__"))
Do we hit the same thing with __fixups__ or __local_fixups__? If so,
just skip anything starting with "__".
> + return;
> +
> if (n < node->basenamelen)
> FAIL(c, dti, node, "Character '%c' not recommended in node name",
> node->name[n]);
> @@ -767,6 +770,9 @@ static void check_reg_format(struct check *c, struct dt_info *dti,
> return;
> }
>
> + if (streq(node->parent->name, "__overlay__"))
Move this to a helper: is_overlay_node(node->parent)
> + return;
> +
> if (prop->val.len == 0)
> FAIL_PROP(c, dti, node, prop, "property is empty");
>
> @@ -1197,6 +1203,10 @@ static void check_avoid_default_addr_size(struct check *c, struct dt_info *dti,
> if (!node->parent)
> return; /* Ignore root node */
>
> +
Extra blank line.
> + if (streq(node->parent->name, "__overlay__"))
> + return;
> +
> reg = get_property(node, "reg");
> ranges = get_property(node, "ranges");
>
> --
> 2.18.0
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-01-11 2:34 [PATCH] checks: Suppress warnings on overlay fragments Qun-Wei Lin
[not found] ` <20230111023417.24141-1-qun-wei.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2023-02-01 11:23 ` Qun-wei Lin (林群崴)
2023-02-01 20:29 ` Rob Herring
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