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ptp_qoriq: don't pass a large struct by value but instead pass it by reference

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Passing the struct ptp_clock_info caps by parameter is passing over 130 bytes
of data by value on the stack. Optimize this by passing it by reference instead.
Also shinks the object code size:

Before:
   text	   data	    bss	    dec	    hex	filename
  12596	   2160	     64	  14820	   39e4	drivers/ptp/ptp_qoriq.o

After:
   text	   data	    bss	    dec	    hex	filename
  12567	   2160	     64	  14791	   39c7	drivers/ptp/ptp_qoriq.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King
2019-02-19 14:21:20 +00:00
committed by David S. Miller
parent d2cf821ff6
commit 58066ac9d7
3 changed files with 5 additions and 5 deletions
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2
include/linux/fsl/ptp_qoriq.h
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@@ -183,7 +183,7 @@ static inline void qoriq_write_le(unsigned __iomem *addr, u32 val)
irqreturn_t ptp_qoriq_isr(int irq, void *priv);
int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base,
const struct ptp_clock_info caps);
const struct ptp_clock_info *caps);
void ptp_qoriq_free(struct ptp_qoriq *ptp_qoriq);
int ptp_qoriq_adjfine(struct ptp_clock_info *ptp, long scaled_ppm);
int ptp_qoriq_adjtime(struct ptp_clock_info *ptp, s64 delta);