ptp_qoriq: don't pass a large struct by value but instead pass it by reference
authorColin Ian King <colin.king@canonical.com>
Tue, 19 Feb 2019 14:21:20 +0000 (14:21 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 19 Feb 2019 22:15:40 +0000 (14:15 -0800)
commit58066ac9d7f5dcde4ef08c03b7e127f0522d9ea0
tree6751fcd5a6c6ef8d81726d12bc0c62a6ee63949a
parentd2cf821ff677d3108c783f1b41f558069c955c82
ptp_qoriq: don't pass a large struct by value but instead pass it by reference

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>
drivers/net/ethernet/freescale/enetc/enetc_ptp.c
drivers/ptp/ptp_qoriq.c
include/linux/fsl/ptp_qoriq.h