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| author | Colin Ian King <colin.king@canonical.com> | 2019-02-19 14:21:20 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-19 14:15:40 -0800 |
| commit | 58066ac9d7f5dcde4ef08c03b7e127f0522d9ea0 (patch) | |
| tree | 6751fcd5a6c6ef8d81726d12bc0c62a6ee63949a | |
| parent | d2cf821ff677d3108c783f1b41f558069c955c82 (diff) | |
| download | linux-58066ac9d7f5dcde4ef08c03b7e127f0522d9ea0.tar.gz linux-58066ac9d7f5dcde4ef08c03b7e127f0522d9ea0.tar.bz2 linux-58066ac9d7f5dcde4ef08c03b7e127f0522d9ea0.zip | |
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>
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_ptp.c | 2 | ||||
| -rw-r--r-- | drivers/ptp/ptp_qoriq.c | 6 | ||||
| -rw-r--r-- | include/linux/fsl/ptp_qoriq.h | 2 |
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c index dc2f58a7c9e5..8c1497e7d9c5 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c @@ -92,7 +92,7 @@ static int enetc_ptp_probe(struct pci_dev *pdev, ptp_qoriq->dev = &pdev->dev; - err = ptp_qoriq_init(ptp_qoriq, base, enetc_ptp_caps); + err = ptp_qoriq_init(ptp_qoriq, base, &enetc_ptp_caps); if (err) goto err_no_clock; diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c index 42d3654f77f0..53775362aac6 100644 --- a/drivers/ptp/ptp_qoriq.c +++ b/drivers/ptp/ptp_qoriq.c @@ -459,7 +459,7 @@ static int ptp_qoriq_auto_config(struct ptp_qoriq *ptp_qoriq, } int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, - const struct ptp_clock_info caps) + const struct ptp_clock_info *caps) { struct device_node *node = ptp_qoriq->dev->of_node; struct ptp_qoriq_registers *regs; @@ -468,7 +468,7 @@ int ptp_qoriq_init(struct ptp_qoriq *ptp_qoriq, void __iomem *base, u32 tmr_ctrl; ptp_qoriq->base = base; - ptp_qoriq->caps = caps; + ptp_qoriq->caps = *caps; if (of_property_read_u32(node, "fsl,cksel", &ptp_qoriq->cksel)) ptp_qoriq->cksel = DEFAULT_CKSEL; @@ -605,7 +605,7 @@ static int ptp_qoriq_probe(struct platform_device *dev) goto no_ioremap; } - err = ptp_qoriq_init(ptp_qoriq, base, ptp_qoriq_caps); + err = ptp_qoriq_init(ptp_qoriq, base, &ptp_qoriq_caps); if (err) goto no_clock; diff --git a/include/linux/fsl/ptp_qoriq.h b/include/linux/fsl/ptp_qoriq.h index f127adb71041..992bf9fa1729 100644 --- a/include/linux/fsl/ptp_qoriq.h +++ b/include/linux/fsl/ptp_qoriq.h @@ -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); |