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__pcpu: gcc -Wredundant-decls

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Pollution from counter.h made __pcpu visible in amd64/pmap.c.  Delete
the existing extern decl of __pcpu in amd64/pmap.c and avoid referring
to that symbol, instead accessing the pcpu region via PCPU_SET macros.
Also delete an unused extern decl of __pcpu from mp_x86.c.

Reviewed by:	kib
Approved by:	markj (mentor)
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D11666
This commit is contained in:
Ryan Libby 2017-07-21 17:11:36 +00:00
parent 9ef60181ae
commit b1a987bb34
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=321335
2 changed files with 2 additions and 6 deletions
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6
sys/amd64/amd64/pmap.c
View File

@ -274,8 +274,6 @@ pmap_modified_bit(pmap_t pmap)
return (mask);
}
extern struct pcpu __pcpu[];
#if !defined(DIAGNOSTIC)
#ifdef __GNUC_GNU_INLINE__
#define PMAP_INLINE __attribute__((__gnu_inline__)) inline
@ -1063,8 +1061,8 @@ pmap_bootstrap(vm_paddr_t *firstaddr)
kernel_pmap->pm_pcids[i].pm_pcid = PMAP_PCID_KERN;
kernel_pmap->pm_pcids[i].pm_gen = 1;
}
__pcpu[0].pc_pcid_next = PMAP_PCID_KERN + 1;
__pcpu[0].pc_pcid_gen = 1;
PCPU_SET(pcid_next, PMAP_PCID_KERN + 1);
PCPU_SET(pcid_gen, 1);
/*
* pcpu area for APs is zeroed during AP startup.
* pc_pcid_next and pc_pcid_gen are initialized by AP

2
sys/x86/x86/mp_x86.c
View File

@ -90,8 +90,6 @@ int mcount_lock;
int mp_naps; /* # of Applications processors */
int boot_cpu_id = -1; /* designated BSP */
extern struct pcpu __pcpu[];
/* AP uses this during bootstrap. Do not staticize. */
char *bootSTK;
int bootAP;