Re: [PATCH] MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRs

[James Hogan]

On Wed, May 16, 2018 at 04:39:58PM +0100, Maciej W. Rozycki wrote:
> Use 64-bit accesses for 64-bit floating-point general registers with 
> PTRACE_PEEKUSR, removing the truncation of their upper halves in the 
> FR=1 mode, caused by commit bbd426f542cb ("MIPS: Simplify FP context 
> access"), which inadvertently switched them to using 32-bit accesses.
> 
> The PTRACE_POKEUSR side is fine as it's never been broken and continues 
> using 64-bit accesses.
> 
> Cc: <stable@xxxxxxxxxxxxxxx> # 3.19+
> Fixes: bbd426f542cb ("MIPS: Simplify FP context access")
> Signed-off-by: Maciej W. Rozycki <macro@xxxxxxxx>
> ---
> Hi,
> 
>  Here's another one, spotted in the course of GDB PR gdb/22286 regression 
> testing with the n64 ABI.  Please apply.
> 
>   Maciej

Thanks, applied to mips-fixes, hopefully for 4.17 (but if it misses
tomorrows linux-next it may have to wait 'til 4.18).

Cheers
James

Attachment: signature.asc
Description: PGP signature