linux-kernel - Re: [PATCH v4 2/2] riscv: Correct type casting in module loading

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Date:   Mon, 4 Dec 2023 20:32:10 +0000
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Charlie Jenkins <charlie@...osinc.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>, Ron Economos <re@...z.net>,
        Samuel Holland <samuel.holland@...ive.com>,
        Andreas Schwab <schwab@...ux-m68k.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] riscv: Correct type casting in module loading

On Mon, Nov 27, 2023 at 10:08 PM Charlie Jenkins <charlie@...osinc.com> wrote:
>
> Use __le16 with le16_to_cpu.
>
> Fixes: 8fd6c5142395 ("riscv: Add remaining module relocations")
> Signed-off-by: Charlie Jenkins <charlie@...osinc.com>
> Reviewed-by: Samuel Holland <samuel.holland@...ive.com>
> Tested-by: Samuel Holland <samuel.holland@...ive.com>
> ---
>  arch/riscv/kernel/module.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com> #On
RZ/Five SMARC EVK

Cheers,
Prabhakar

> diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
> index 53593fe58cd8..aac019ed63b1 100644
> --- a/arch/riscv/kernel/module.c
> +++ b/arch/riscv/kernel/module.c
> @@ -55,7 +55,7 @@ static bool riscv_insn_valid_32bit_offset(ptrdiff_t val)
>
>  static int riscv_insn_rmw(void *location, u32 keep, u32 set)
>  {
> -       u16 *parcel = location;
> +       __le16 *parcel = location;
>         u32 insn = (u32)le16_to_cpu(parcel[0]) | (u32)le16_to_cpu(parcel[1]) << 16;
>
>         insn &= keep;
> @@ -68,7 +68,7 @@ static int riscv_insn_rmw(void *location, u32 keep, u32 set)
>
>  static int riscv_insn_rvc_rmw(void *location, u16 keep, u16 set)
>  {
> -       u16 *parcel = location;
> +       __le16 *parcel = location;
>         u16 insn = le16_to_cpu(*parcel);
>
>         insn &= keep;
>
> --
> 2.42.0
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

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