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SubjectRe: [PATCH] powerpc/via-pmu: Fix section mismatch warning
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On 07/02/2018 20:44, Mathieu Malaterre wrote:
> Remove the __init annotation from pmu_init() to avoid the
> following warning.
>
> WARNING: vmlinux.o(.data+0x4739c): Section mismatch in reference from the variable via_pmu_driver to the function .init.text:pmu_init()
> The variable via_pmu_driver references
> the function __init pmu_init()
> If the reference is valid then annotate the
> variable with __init* or __refdata (see linux/init.h) or name the variable:
> *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
>
> Signed-off-by: Mathieu Malaterre <malat@debian.org>
> ---
> drivers/macintosh/via-pmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
> index 08849e33c567..5f378272d5b2 100644
> --- a/drivers/macintosh/via-pmu.c
> +++ b/drivers/macintosh/via-pmu.c
> @@ -378,7 +378,7 @@ static int pmu_probe(void)
> return vias == NULL? -ENODEV: 0;
> }
>
> -static int __init pmu_init(void)
> +static int pmu_init(void)
> {
> if (vias == NULL)
> return -ENODEV;
>

pmu_init() is really an init function only called by another init
function (adb_init()).

So I think it could be good to let the __init marker.

Did you try:

--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -198,7 +198,7 @@ static const struct file_operations
pmu_battery_proc_fops;
static const struct file_operations pmu_options_proc_fops;

#ifdef CONFIG_ADB
-struct adb_driver via_pmu_driver = {
+const struct adb_driver via_pmu_driver = {
"PMU",
pmu_probe,
pmu_init,

Thanks,
Laurent

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