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powerpc/64: Remove unused generic_secondary_thread_init()

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The last caller was removed in 2014 in commit fb5a515704 ("powerpc:
Remove platforms/wsp and associated pieces").

As Jordan noticed even though there are no callers, the code above in
fsl_secondary_thread_init() falls through into
generic_secondary_thread_init(). So we can remove the _GLOBAL but not
the body of the function.

However because fsl_secondary_thread_init() is inside #ifdef
CONFIG_PPC_BOOK3E, we can never reach the body of
generic_secondary_thread_init() unless CONFIG_PPC_BOOK3E is enabled,
so we can wrap the whole thing in a single #ifdef.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200819015704.1976364-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2020-08-19 11:57:04 +10:00
parent 003d6f5fd2
commit 529d2bd56a
2 changed files with 2 additions and 6 deletions
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1
arch/powerpc/include/asm/smp.h
View File

@ -243,7 +243,6 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
* 64-bit but defining them all here doesn't harm
*/
extern void generic_secondary_smp_init(void);
extern void generic_secondary_thread_init(void);
extern unsigned long __secondary_hold_spinloop;
extern unsigned long __secondary_hold_acknowledge;
extern char __secondary_hold;

7
arch/powerpc/kernel/head_64.S
View File

@ -300,9 +300,6 @@ _GLOBAL(fsl_secondary_thread_init)
rlwimi r3, r3, 30, 2, 30
mtspr SPRN_PIR, r3
1:
#endif
_GLOBAL(generic_secondary_thread_init)
mr r24,r3
/* turn on 64-bit mode */
@ -312,13 +309,13 @@ _GLOBAL(generic_secondary_thread_init)
bl relative_toc
tovirt(r2,r2)
#ifdef CONFIG_PPC_BOOK3E
/* Book3E initialization */
mr r3,r24
bl book3e_secondary_thread_init
#endif
b generic_secondary_common_init
#endif /* CONFIG_PPC_BOOK3E */
/*
* On pSeries and most other platforms, secondary processors spin
* in the following code.