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Re: [PATCH] ARC: Change ld.as instruction to regular ld.

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  Re: [PATCH] ARC: Change ld.as instruction to regular ld. Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-08-17 19:20 +0200

#1464665 — Re: [PATCH] ARC: Change ld.as instruction to regular ld.

On 08/16/2016 11:24 PM, Liav Rehana wrote:
> From: Liav Rehana <liavr@mellanox.com>
>
> User mode callee regs are explicitly collected before signal delivery
> or breakpoint trap. r25 is special for kernel as it serves as task
> pointer, so user mode value is clobbered very early. It is saved in
> pt_regs where generally only scratch (caller saved) res are saved.
> The code to access the corresponding pt_regs location had a subtle bug
> as it was using load/store with scaling of offset, whereas the offset
> was already byte wise correct. So fix this by replacing LD.AS with a
> standard LD
>
> Signed-off-by: Liav Rehana <liavr@mellanox.com>

Thx for the fix Liv.
I added it to my for-curr.

-Vineet

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