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SubjectRe: [PATCH 31/36] powerpc: asm: hvconsole: Move 'hvc_vio_init_early's prototype to shared location
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Le 04/11/2020 à 20:35, Lee Jones a écrit :
> Fixes the following W=1 kernel build warning(s):
>
> drivers/tty/hvc/hvc_vio.c:385:13: warning: no previous prototype for ‘hvc_vio_init_early’ [-Wmissing-prototypes]
> 385 | void __init hvc_vio_init_early(void)
> | ^~~~~~~~~~~~~~~~~~
>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
> arch/powerpc/include/asm/hvconsole.h | 3 +++
> arch/powerpc/platforms/pseries/pseries.h | 3 ---
> arch/powerpc/platforms/pseries/setup.c | 1 +
> 3 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/hvconsole.h b/arch/powerpc/include/asm/hvconsole.h
> index 999ed5ac90531..936a1ee1ac786 100644
> --- a/arch/powerpc/include/asm/hvconsole.h
> +++ b/arch/powerpc/include/asm/hvconsole.h
> @@ -24,5 +24,8 @@
> extern int hvc_get_chars(uint32_t vtermno, char *buf, int count);
> extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count);
>
> +/* Provided by HVC VIO */
> +extern void hvc_vio_init_early(void);
> +

Declaring a prototype 'extern' is pointless. Don't add new misuse of 'extern' keyword.


> #endif /* __KERNEL__ */
> #endif /* _PPC64_HVCONSOLE_H */
> diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
> index 13fa370a87e4e..7be5b054dfc36 100644
> --- a/arch/powerpc/platforms/pseries/pseries.h
> +++ b/arch/powerpc/platforms/pseries/pseries.h
> @@ -43,9 +43,6 @@ extern void pSeries_final_fixup(void);
> /* Poweron flag used for enabling auto ups restart */
> extern unsigned long rtas_poweron_auto;
>
> -/* Provided by HVC VIO */
> -extern void hvc_vio_init_early(void);
> -
> /* Dynamic logical Partitioning/Mobility */
> extern void dlpar_free_cc_nodes(struct device_node *);
> extern void dlpar_free_cc_property(struct property *);
> diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
> index 633c45ec406da..6999b83f06612 100644
> --- a/arch/powerpc/platforms/pseries/setup.c
> +++ b/arch/powerpc/platforms/pseries/setup.c
> @@ -71,6 +71,7 @@
> #include <asm/swiotlb.h>
> #include <asm/svm.h>
> #include <asm/dtl.h>
> +#include <asm/hvconsole.h>
>
> #include "pseries.h"
> #include "../../../../drivers/pci/pci.h"
>

Christophe

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