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x86/platform: Only allow CONFIG_EISA for 32-bit

The CONFIG_EISA menu was cleaned up in 2018, but this inadvertently
brought the option back on 64-bit machines: ISA remains guarded by
a CONFIG_X86_32 check, but EISA no longer depends on ISA.

The last Intel machines ith EISA support used a 82375EB PCI/EISA bridge
from 1993 that could be paired with the 440FX chipset on early Pentium-II
CPUs, long before the first x86-64 products.

Fixes: 6630a8e50105 ("eisa: consolidate EISA Kconfig entry in drivers/eisa")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250226213714.4040853-11-arnd@kernel.org

authored by

Arnd Bergmann and committed by
Ingo Molnar 976ba8da dcbb01fb

+1 -1
+1 -1
arch/x86/Kconfig
··· 233 233 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI if X86_64 234 234 select HAVE_EBPF_JIT 235 235 select HAVE_EFFICIENT_UNALIGNED_ACCESS 236 - select HAVE_EISA 236 + select HAVE_EISA if X86_32 237 237 select HAVE_EXIT_THREAD 238 238 select HAVE_GUP_FAST 239 239 select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE