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m68k: Use sizeof_field() helper 

Make use of the sizeof_field() helper instead of an open-coded version.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200527133942.GA10408@embeddedor
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Gustavo A. R. Silva 2020-05-27 08:39:42 -05:00 committed by Geert Uytterhoeven
parent 40b13fd7fd
commit 5f5f2949c1
1 changed files with 16 additions and 16 deletions
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32
arch/m68k/kernel/signal.c
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@ -61,25 +61,25 @@
#define FMT4SIZE 0
#else
#define FORMAT 0
#define FMT4SIZE sizeof(((struct frame *)0)->un.fmt4)
#define FMT4SIZE sizeof_field(struct frame, un.fmt4)
#endif
static const int frame_size_change[16] = {
[1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */
[2] = sizeof(((struct frame *)0)->un.fmt2),
[3] = sizeof(((struct frame *)0)->un.fmt3),
[1] = -1, /* sizeof_field(struct frame, un.fmt1), */
[2] = sizeof_field(struct frame, un.fmt2),
[3] = sizeof_field(struct frame, un.fmt3),
[4] = FMT4SIZE,
[5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */
[6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */
[7] = sizeof(((struct frame *)0)->un.fmt7),
[8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */
[9] = sizeof(((struct frame *)0)->un.fmt9),
[10] = sizeof(((struct frame *)0)->un.fmta),
[11] = sizeof(((struct frame *)0)->un.fmtb),
[12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */
[13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */
[14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */
[15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */
[5] = -1, /* sizeof_field(struct frame, un.fmt5), */
[6] = -1, /* sizeof_field(struct frame, un.fmt6), */
[7] = sizeof_field(struct frame, un.fmt7),
[8] = -1, /* sizeof_field(struct frame, un.fmt8), */
[9] = sizeof_field(struct frame, un.fmt9),
[10] = sizeof_field(struct frame, un.fmta),
[11] = sizeof_field(struct frame, un.fmtb),
[12] = -1, /* sizeof_field(struct frame, un.fmtc), */
[13] = -1, /* sizeof_field(struct frame, un.fmtd), */
[14] = -1, /* sizeof_field(struct frame, un.fmte), */
[15] = -1, /* sizeof_field(struct frame, un.fmtf), */
};
static inline int frame_extra_sizes(int f)
@ -651,7 +651,7 @@ static int mangle_kernel_stack(struct pt_regs *regs, int formatvec,
} else {
struct switch_stack *sw = (struct switch_stack *)regs - 1;
/* yes, twice as much as max(sizeof(frame.un.fmt<x>)) */
unsigned long buf[sizeof(((struct frame *)0)->un) / 2];
unsigned long buf[sizeof_field(struct frame, un) / 2];
/* that'll make sure that expansion won't crap over data */
if (copy_from_user(buf + fsize / 4, fp, fsize))