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m68k: sun3: Improve Sun3/3x DVMA abstraction in <asm/dvma.h>
When building with W=1: arch/m68k/sun3/dvma.c:65:13: warning: no previous prototype for ‘sun3_dvma_init’ [-Wmissing-prototypes] 65 | void __init sun3_dvma_init(void) | ^~~~~~~~~~~~~~ arch/m68k/sun3x/dvma.c:178:6: warning: no previous prototype for ‘dvma_unmap_iommu’ [-Wmissing-prototypes] 179 | void dvma_unmap_iommu(unsigned long baddr, int len) | ^~~~~~~~~~~~~~~~ Fix this by moving the declarations for sun3_dvma_init() and dvma_unmap_iommu() to <asm/dvma.h>. Avoid #ifdefs in callers by providing dummy static inline functions. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/ec93ed1b28b75674ae9a0b42de083a9bb140f0b3.1694613528.git.geert@linux-m68k.org
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@ -58,12 +58,16 @@ extern void dvma_free(void *vaddr);
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#define dvma_vtob(x) dvma_vtop(x)
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#define dvma_btov(x) dvma_ptov(x)
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void sun3_dvma_init(void);
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static inline int dvma_map_cpu(unsigned long kaddr, unsigned long vaddr,
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int len)
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{
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return 0;
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}
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static inline void dvma_unmap_iommu(unsigned long baddr, int len) { }
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#else /* Sun3x */
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/* sun3x dvma page support */
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@ -78,9 +82,11 @@ static inline int dvma_map_cpu(unsigned long kaddr, unsigned long vaddr,
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#define dvma_vtob(x) ((unsigned long)(x) & 0x00ffffff)
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#define dvma_btov(x) ((unsigned long)(x) | 0xff000000)
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extern int dvma_map_cpu(unsigned long kaddr, unsigned long vaddr, int len);
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static inline void sun3_dvma_init(void) { }
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int dvma_map_cpu(unsigned long kaddr, unsigned long vaddr, int len);
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void dvma_unmap_iommu(unsigned long baddr, int len);
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/* everything below this line is specific to dma used for the onboard
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ESP scsi on sun3x */
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@ -20,18 +20,6 @@
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#undef DVMA_DEBUG
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#ifdef CONFIG_SUN3X
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extern void dvma_unmap_iommu(unsigned long baddr, int len);
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#else
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static inline void dvma_unmap_iommu(unsigned long a, int b)
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{
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}
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#endif
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#ifdef CONFIG_SUN3
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extern void sun3_dvma_init(void);
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#endif
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static unsigned long *iommu_use;
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#define dvma_index(baddr) ((baddr - DVMA_START) >> DVMA_PAGE_SHIFT)
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@ -274,10 +262,7 @@ void __init dvma_init(void)
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dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
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#ifdef CONFIG_SUN3
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sun3_dvma_init();
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#endif
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}
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unsigned long dvma_map_align(unsigned long kaddr, int len, int align)
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