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x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP
authorIngo Molnar <mingo@kernel.org>
Wed, 12 Mar 2025 11:48:49 +0000 (12:48 +0100)
committerIngo Molnar <mingo@kernel.org>
Wed, 19 Mar 2025 10:26:58 +0000 (11:26 +0100)
commit91d5451d97ce35cbd510277fa3b7abf9caa4e34d
tree4a3c755880704d84f3f524bac56bb4c07c105494tree
parent3f5dbafc2d4651020f45309ca85120b6a8162fd9commit | diff
x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP

The __ref_stack_chk_guard symbol doesn't exist on UP:

  <stdin>:4:15: error: ‘__ref_stack_chk_guard’ undeclared here (not in a function)

Fix the #ifdef around the entry.S export.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Uros Bizjak <ubizjak@gmail.com>
Link: https://lore.kernel.org/r/20250123190747.745588-8-brgerst@gmail.com
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