[v4,2/2] riscv: Correct type casting in module loading

Message ID 20231127-module_linking_freeing-v4-2-a2ca1d7027d0@rivosinc.com
State New
Headers
Series riscv: Fix issues with module loading |

Commit Message

Charlie Jenkins Nov. 27, 2023, 10:05 p.m. UTC
  Use __le16 with le16_to_cpu.

Fixes: 8fd6c5142395 ("riscv: Add remaining module relocations")
Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>
---
 arch/riscv/kernel/module.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
  

Comments

Lad, Prabhakar Dec. 4, 2023, 8:32 p.m. UTC | #1
On Mon, Nov 27, 2023 at 10:08 PM Charlie Jenkins <charlie@rivosinc.com> wrote:
>
> Use __le16 with le16_to_cpu.
>
> Fixes: 8fd6c5142395 ("riscv: Add remaining module relocations")
> Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
> Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
> Tested-by: Samuel Holland <samuel.holland@sifive.com>
> ---
>  arch/riscv/kernel/module.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.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@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv
  

Patch

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;