Re: [PATCH 1/2] kernel: add platform_has() infrastructure

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On Tue, Apr 26, 2022 at 03:40:20PM +0200, Juergen Gross wrote:
> diff --git a/kernel/platform-feature.c b/kernel/platform-feature.c
> new file mode 100644
> index 000000000000..2d52f8442cd5
> --- /dev/null
> +++ b/kernel/platform-feature.c
> @@ -0,0 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <linux/cache.h>
> +#include <linux/platform-feature.h>
> +
> +unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ];

Probably __ro_after_init.

> +EXPORT_SYMBOL_GPL(platform_features);

You probably should make that thing static and use only accessors to
modify it in case you wanna change the underlying data structure in the
future.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette



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