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Please keep discussions on-list unless there's something that can't/shouldn't be
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On Tue, Sep 02, 2025, Faruqui, Aqib wrote:
> I suppose a fix for blindly using PAGE_SIZE in subsequent macros:
>
> #ifdef PAGE_SIZE
> #undef PAGE_SIZE
> #endif
> #define PAGE_SIZE (1ULL << PAGE_SHIFT)
>
> Is no better and is instead blindly suppressing the compiler's redefinition
> warning.
>
> I'm having trouble finding what causes the conflict, any advice here?
Maybe try a newer compiler? E.g. gcc-14.2 will spit out the exact location of
the
previous definition.
In file included from include/x86/svm_util.h:13,
from include/x86/sev.h:15,
from lib/x86/sev.c:5:
include/x86/processor.h:373:9: error: "PAGE_SIZE" redefined [-Werror]
373 | #define PAGE_SIZE (1ULL << PAGE_SHIFT)
| ^~~~~~~~~
include/x86/processor.h:370:9: note: this is the location of the previous
definition
370 | #define PAGE_SIZE BIT(12)
| ^~~~~~~~~
