Messages in this thread | | | From | Florian Weimer <> | Subject | Re: [PATCH] x86/entry/ia32: Ensure s32 is sign extended to s64 | Date | Mon, 27 Sep 2021 20:51:11 +0200 |
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* Richard Palethorpe:
> +#define __SC_COMPAT_CAST(t, a) \ > + (__typeof(__builtin_choose_expr(__TYPE_IS_L(t), 0, 0U))) \ > + (unsigned int)a
So this casts to int (triggering sign extension) if the type on the 64-bit kernel side is long? But not in other cases (unsigned long, pointer)? Just double-checking.
Thanks, Florian
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