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parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
This fixes compile warnings like this one: net/ipv4/igmp.c: In function ‘ip_mc_leave_group’: net/ipv4/igmp.c:1898:3: warning: overflow in implicit constant conversion [-Woverflow] atomic_sub() is defined as __atomic_add_return(-(VAL),(v)))) and if VAL is of type unsigned int (as returned by sizeof()), negating this value will overflow. Fix this by type-casting VAL to int type. Signed-off-by: Helge Deller <deller@gmx.de>
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1 changed files with 2 additions and 2 deletions
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@ -116,7 +116,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
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#define atomic_add(i,v) ((void)(__atomic_add_return( (i),(v))))
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#define atomic_add(i,v) ((void)(__atomic_add_return( (i),(v))))
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#define atomic_sub(i,v) ((void)(__atomic_add_return(-(i),(v))))
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#define atomic_sub(i,v) ((void)(__atomic_add_return(-((int) (i)),(v))))
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#define atomic_inc(v) ((void)(__atomic_add_return( 1,(v))))
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#define atomic_inc(v) ((void)(__atomic_add_return( 1,(v))))
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#define atomic_dec(v) ((void)(__atomic_add_return( -1,(v))))
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#define atomic_dec(v) ((void)(__atomic_add_return( -1,(v))))
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