xen: fix multicall debug data referencing

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The recent adding of multicall debug mixed up the referencing of
the debug data. A __percpu tagged pointer can't be initialized with a
plain pointer, so use another percpu variable for the pointer and set
it on each new cpu via a function.

Fixes: 942d917cb9 ("xen: make multicall debug boot time selectable")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407151106.5s7Mnfpz-lkp@intel.com/
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>

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This commit is contained in:

Juergen Gross 2024-07-15 09:47:08 +02:00

parent 9fe6a8c5b2

commit 368990a7fe

3 changed files with 16 additions and 7 deletions

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19

arch/x86/xen/multicalls.c

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1

arch/x86/xen/smp_pv.c

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3

arch/x86/xen/xen-ops.h

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