arc: iounmap() arg is volatile

Add 'volatile' to iounmap()'s argument to prevent build warnings. This make it the same as other major architectures. Placates these warnings: (12 such warnings) ../drivers/video/fbdev/riva/fbdev.c: In function 'rivafb_probe': ../drivers/video/fbdev/riva/fbdev.c:2067:42: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers] 2067 | iounmap(default_par->riva.PRAMIN); Fixes: 1162b07 ("ARC: I/O and DMA Mappings") Signed-off-by: Randy Dunlap <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: [email protected] Cc: Arnd Bergmann <[email protected]> Signed-off-by: Vineet Gupta <[email protected]>
ammarfaizi2 · Oct 17, 2022 · c44f15c · c44f15c
1 parent c8f8785
commit c44f15c
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
@@ -32,7 +32,7 @@ static inline void ioport_unmap(void __iomem *addr)
 {
 }
 
-extern void iounmap(const void __iomem *addr);
+extern void iounmap(const volatile void __iomem *addr);
 
 /*
  * io{read,write}{16,32}be() macros

diff --git a/arch/arc/mm/ioremap.c b/arch/arc/mm/ioremap.c
@@ -94,7 +94,7 @@ void __iomem *ioremap_prot(phys_addr_t paddr, unsigned long size,
 EXPORT_SYMBOL(ioremap_prot);
 
 
-void iounmap(const void __iomem *addr)
+void iounmap(const volatile void __iomem *addr)
 {
 	/* weird double cast to handle phys_addr_t > 32 bits */
 	if (arc_uncached_addr_space((phys_addr_t)(u32)addr))