Michael Ellerman <mpe@xxxxxxxxxxxxxx> writes: > Mahesh J Salgaonkar <mahesh@xxxxxxxxxxxxx> writes: >> On 2023-08-15 13:52:14 Tue, Michael Ellerman wrote: >>> Mahesh Salgaonkar <mahesh@xxxxxxxxxxxxx> writes: > ... >>> > diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h >>> > index 3abe15ac79db1..5572a0a2f6e18 100644 >>> > --- a/arch/powerpc/include/asm/rtas.h >>> > +++ b/arch/powerpc/include/asm/rtas.h >>> > @@ -202,7 +202,9 @@ typedef struct { >>> > #define RTAS_USER_REGION_SIZE (64 * 1024) >>> > >>> > /* RTAS return status codes */ >>> > -#define RTAS_BUSY -2 /* RTAS Busy */ >>> > +#define RTAS_HARDWARE_ERROR (-1) /* Hardware Error */ >>> > +#define RTAS_BUSY (-2) /* RTAS Busy */ >>> >>> Are the brackets necessary? >> >> During v5 changset I received offline review comment to add brackets, >> hence continued here as well. I can take it away if Nathan is fine with >> it. > > OK. I can't think of a context where the brackets are useful, but I'm > probably just not thinking hard enough. I don't really mind adding them, > I was just curious what the justification for them was. It was my (mistaken) suggestion -- they're not needed.