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Message-ID: <20231019-61b3653a98a1c021623b091e@orel>
Date: Thu, 19 Oct 2023 10:03:44 +0200
From: Andrew Jones <ajones@...tanamicro.com>
To: Anup Patel <apatel@...tanamicro.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>,
Atish Patra <atishp@...shpatra.org>,
Palmer Dabbelt <palmer@...belt.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Conor Dooley <conor@...nel.org>, kvm@...r.kernel.org,
kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
linux-serial@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/8] RISC-V: Add inline version of
sbi_console_putchar/getchar() functions
On Thu, Oct 12, 2023 at 10:45:06AM +0530, Anup Patel wrote:
> The functions sbi_console_putchar() and sbi_console_getchar() are
> not defined when CONFIG_RISCV_SBI_V01 is disabled so let us add
> inline version of these functions to avoid "#ifdef" on user side.
nit: Here and in the summary I'd probably use the word "stub" instead of
"inline version".
>
> Signed-off-by: Anup Patel <apatel@...tanamicro.com>
> ---
> arch/riscv/include/asm/sbi.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
> index 12dfda6bb924..cbcefa344417 100644
> --- a/arch/riscv/include/asm/sbi.h
> +++ b/arch/riscv/include/asm/sbi.h
> @@ -271,8 +271,13 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
> unsigned long arg3, unsigned long arg4,
> unsigned long arg5);
>
> +#ifdef CONFIG_RISCV_SBI_V01
> void sbi_console_putchar(int ch);
> int sbi_console_getchar(void);
> +#else
> +static inline void sbi_console_putchar(int ch) { }
> +static inline int sbi_console_getchar(void) { return -1; }
> +#endif
> long sbi_get_mvendorid(void);
> long sbi_get_marchid(void);
> long sbi_get_mimpid(void);
> --
> 2.34.1
>
Otherwise,
Reviewed-by: Andrew Jones <ajones@...tanamicro.com>
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