09.06.2021 16:19, Krzysztof Kozlowski пишет:
> On 09/06/2021 13:58, Dmitry Osipenko wrote:
>> 09.06.2021 14:28, Thierry Reding пишет:
>>> From: Thierry Reding <treding@xxxxxxxxxx>
>>>
>>> When enabling the COMPILE_TEST Kconfig option, the Tegra memory
>>> controller can be built without ARCH_TEGRA being selected. However, the
>>> driver implicitly depends on some symbols pulled in via ARCH_TEGRA,
>>> which causes the build to break.
>>>
>>> Add explicit dependencies for OF_EARLY_FLATTREE and OF_RESERVED_MEM to
>>> the Tegra MC Kconfig option to make sure they are selected even if
>>> ARCH_TEGRA is not.
>>>
>>> Reported-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>>> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
>>> ---
>>> drivers/memory/tegra/Kconfig | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> diff --git a/drivers/memory/tegra/Kconfig b/drivers/memory/tegra/Kconfig
>>> index f9bae36c03a3..ecfb071fc4f4 100644
>>> --- a/drivers/memory/tegra/Kconfig
>>> +++ b/drivers/memory/tegra/Kconfig
>>> @@ -48,6 +48,8 @@ config TEGRA124_EMC
>>> config TEGRA210_EMC_TABLE
>>> bool
>>> depends on ARCH_TEGRA_210_SOC || COMPILE_TEST
>>> + select OF_EARLY_FLATTREE
>>> + select OF_RESERVED_MEM
>>>
>>> config TEGRA210_EMC
>>> tristate "NVIDIA Tegra210 External Memory Controller driver"
>>>
>>
>> Will this work if CONFIG_OF is disabled?
>
> Yeah, good question. That's why I propose "depends on". No issues with
> unmet or circular dependencies.
What about to add stub for RESERVEDMEM_OF_DECLARE() + CONFIG_OF_RESERVED_MEM=n?
diff --git a/include/linux/of.h b/include/linux/of.h
index d8db8d3592fd..9c2e71e202d1 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1329,6 +1329,12 @@ static inline int of_get_available_child_count(const struct device_node *np)
return num;
}
+#define _OF_DECLARE_STUB(table, name, compat, fn, fn_type) \
+ static const struct of_device_id __of_table_##name \
+ __attribute__((unused)) \
+ = { .compatible = compat, \
+ .data = (fn == (fn_type)NULL) ? fn : fn }
+
#if defined(CONFIG_OF) && !defined(MODULE)
#define _OF_DECLARE(table, name, compat, fn, fn_type) \
static const struct of_device_id __of_table_##name \
@@ -1338,10 +1344,7 @@ static inline int of_get_available_child_count(const struct device_node *np)
.data = (fn == (fn_type)NULL) ? fn : fn }
#else
#define _OF_DECLARE(table, name, compat, fn, fn_type) \
- static const struct of_device_id __of_table_##name \
- __attribute__((unused)) \
- = { .compatible = compat, \
- .data = (fn == (fn_type)NULL) ? fn : fn }
+ _OF_DECLARE_STUB(table, name, compat, fn, fn_type)
#endif
typedef int (*of_init_fn_2)(struct device_node *, struct device_node *);
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h
index 76e4a0fffba4..4de2a24cadc9 100644
--- a/include/linux/of_reserved_mem.h
+++ b/include/linux/of_reserved_mem.h
@@ -27,11 +27,11 @@ struct reserved_mem_ops {
typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
+#ifdef CONFIG_OF_RESERVED_MEM
+
#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
-#ifdef CONFIG_OF_RESERVED_MEM
-
int of_reserved_mem_device_init_by_idx(struct device *dev,
struct device_node *np, int idx);
int of_reserved_mem_device_init_by_name(struct device *dev,
@@ -41,6 +41,10 @@ void of_reserved_mem_device_release(struct device *dev);
struct reserved_mem *of_reserved_mem_lookup(struct device_node *np);
#else
+
+#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
+ _OF_DECLARE_STUB(reservedmem, name, compat, init, reservedmem_of_init_fn)
+
static inline int of_reserved_mem_device_init_by_idx(struct device *dev,
struct device_node *np, int idx)
{
