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riscv: use NULL instead of a plain 0

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sbi_remote_sfence_vma() & sbi_remote_fence_i() takes
a pointer as first argument but some macros call them with
a plain 0 which, while legal C, is frowned upon in the kernel.

Change this by replacing the 0 by NULL.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Luc Van Oostenryck 2018-06-01 17:21:21 +02:00 committed by Palmer Dabbelt
parent 29dcea8877
commit 2861ae302f
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GPG Key ID: EF4CA1502CCBAB41
2 changed files with 2 additions and 2 deletions
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2
arch/riscv/include/asm/cacheflush.h
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@ -47,7 +47,7 @@ static inline void flush_dcache_page(struct page *page)
#else /* CONFIG_SMP */
#define flush_icache_all() sbi_remote_fence_i(0)
#define flush_icache_all() sbi_remote_fence_i(NULL)
void flush_icache_mm(struct mm_struct *mm, bool local);
#endif /* CONFIG_SMP */

2
arch/riscv/include/asm/tlbflush.h
View File

@ -49,7 +49,7 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
#include <asm/sbi.h>
#define flush_tlb_all() sbi_remote_sfence_vma(0, 0, -1)
#define flush_tlb_all() sbi_remote_sfence_vma(NULL, 0, -1)
#define flush_tlb_page(vma, addr) flush_tlb_range(vma, addr, 0)
#define flush_tlb_range(vma, start, end) \
sbi_remote_sfence_vma(mm_cpumask((vma)->vm_mm)->bits, \