Commit 8e1034a5 authored by Jan Beulich's avatar Jan Beulich Committed by Juergen Gross

xen/pci-swiotlb: reduce visibility of symbols

xen_swiotlb and pci_xen_swiotlb_init() are only used within the file
defining them, so make them static and remove the stubs. Otoh
pci_xen_swiotlb_detect() has a use (as function pointer) from the main
pci-swiotlb.c file - convert its stub to a #define to NULL.
Signed-off-by: default avatarJan Beulich <jbeulich@suse.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>

Link: https://lore.kernel.org/r/aef5fc33-9c02-4df0-906a-5c813142e13c@suse.comSigned-off-by: default avatarJuergen Gross <jgross@suse.com>
parent e243ae95
...@@ -3,14 +3,10 @@ ...@@ -3,14 +3,10 @@
#define _ASM_X86_SWIOTLB_XEN_H #define _ASM_X86_SWIOTLB_XEN_H
#ifdef CONFIG_SWIOTLB_XEN #ifdef CONFIG_SWIOTLB_XEN
extern int xen_swiotlb;
extern int __init pci_xen_swiotlb_detect(void); extern int __init pci_xen_swiotlb_detect(void);
extern void __init pci_xen_swiotlb_init(void);
extern int pci_xen_swiotlb_init_late(void); extern int pci_xen_swiotlb_init_late(void);
#else #else
#define xen_swiotlb (0) #define pci_xen_swiotlb_detect NULL
static inline int __init pci_xen_swiotlb_detect(void) { return 0; }
static inline void __init pci_xen_swiotlb_init(void) { }
static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; } static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; }
#endif #endif
......
...@@ -18,7 +18,7 @@ ...@@ -18,7 +18,7 @@
#endif #endif
#include <linux/export.h> #include <linux/export.h>
int xen_swiotlb __read_mostly; static int xen_swiotlb __read_mostly;
/* /*
* pci_xen_swiotlb_detect - set xen_swiotlb to 1 if necessary * pci_xen_swiotlb_detect - set xen_swiotlb to 1 if necessary
...@@ -56,7 +56,7 @@ int __init pci_xen_swiotlb_detect(void) ...@@ -56,7 +56,7 @@ int __init pci_xen_swiotlb_detect(void)
return xen_swiotlb; return xen_swiotlb;
} }
void __init pci_xen_swiotlb_init(void) static void __init pci_xen_swiotlb_init(void)
{ {
if (xen_swiotlb) { if (xen_swiotlb) {
xen_swiotlb_init_early(); xen_swiotlb_init_early();
......
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