Messages in this thread | | | From | Ard Biesheuvel <> | Date | Wed, 23 Nov 2016 10:35:01 +0000 | Subject | Re: [PATCH 2/6] arm/efi: Allow invocation of arbitrary runtime services [ver #2] |
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On 23 November 2016 at 09:34, David Howells <dhowells@redhat.com> wrote: > David Howells <dhowells@redhat.com> wrote: > >> +#define efi_call_runtime(f, ...) sys_table_arg->runtime->f(__VA_ARGS__) > > Turns out it's not that simple - of course. runtime->get_variable is just a > void pointer. The old arm stub was casting it by virtue of assignment to a > function pointer variable. > > The x86_64 appears to be doing bypassing all the compile-time type checking by > passing the arguments through an ellipsis and then fixing up the argument list > in the ->call() function. > > What I've changed the ARM and ARM64 things to is: > > #define efi_call_runtime(f, ...) ((efi_##f##_t *)sys_table_arg->runtime->f)(__VA_ARGS__) >
Could we please instead fix the definition of efi_runtime_services_t, given that we have typedefs already for all its members?
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