Re: [PATCH] arm: Test for CONFIG_USE_OF to handle the USE_OF=n/OF=y case

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Sun, Oct 25, 2015 at 10:25 AM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> Until commit 0166dc11be911213 ("of: make CONFIG_OF user selectable"),
> CONFIG_OF=y implied CONFIG_USE_OF=y on ARM, as the former could solely
> be enabled by being selected by the latter.

Arnd sent a similar fix[1] which I prefer.

> However, if the user now manually enables CONFIG_OF=y while
> CONFIG_USE_OF=n:
>
>     arch/arm/kernel/devtree.c: In function 'setup_machine_fdt':
>     arch/arm/kernel/devtree.c:215:2: error: implicit declaration of function 'early_init_dt_verify' [-Werror=implicit-function-declaration]
>       if (!dt_phys || !early_init_dt_verify(phys_to_virt(dt_phys)))
>       ^
>     arch/arm/kernel/devtree.c:218:2: error: implicit declaration of function 'of_flat_dt_match_machine' [-Werror=implicit-function-declaration]
>       mdesc = of_flat_dt_match_machine(mdesc_best, arch_get_next_mach);
>       ^
>     arch/arm/kernel/devtree.c:218:8: warning: assignment makes pointer from integer without a cast
>       mdesc = of_flat_dt_match_machine(mdesc_best, arch_get_next_mach);
>             ^
>     arch/arm/kernel/devtree.c:228:3: error: implicit declaration of function 'of_get_flat_dt_root' [-Werror=implicit-function-declaration]
>        dt_root = of_get_flat_dt_root();
>        ^
>     arch/arm/kernel/devtree.c:229:3: error: implicit declaration of function 'of_get_flat_dt_prop' [-Werror=implicit-function-declaration]
>        prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
>        ^
>     arch/arm/kernel/devtree.c:229:8: warning: assignment makes pointer from integer without a cast
>        prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
>             ^
>     arch/arm/kernel/devtree.c:244:2: error: implicit declaration of function 'early_init_dt_scan_nodes' [-Werror=implicit-function-declaration]
>       early_init_dt_scan_nodes();
>       ^
>
> and
>
>     arch/arm/kernel/built-in.o: In function `setup_arch':
>     arch/arm/kernel/setup.c:940: undefined reference to `setup_machine_fdt'
>     arch/arm/kernel/setup.c:979: undefined reference to `arm_dt_init_cpu_maps'
>
> Replace tests for CONFIG_OF by tests for CONFIG_USE_OF where appropriate
> to fix this.
>
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> ---
> Cfr. http://kisskb.ellerman.id.au/kisskb/buildresult/12531538/
>
> I only fixed the particular issue with the randconfig from the build
> above.  Are there more tests for CONFIG_OF that should be converted to
> CONFIG_USE_OF?

I'd rather move toward removing USE_OF and having arches select if
they use EARLY_FLATTREE.

Rob

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/376484.html
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux