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net: dsa: sja1105: Replace sja1105_spi_send_int with sja1105_xfer_{u32, u64}

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Having a function that takes a variable number of unpacked bytes which
it generically calls an "int" is confusing and makes auditing patches
next to impossible.

We only use spi_send_int with the int sizes of 32 and 64 bits. So just
make the spi_send_int function less generic and replace it with the
appropriate two explicit functions, which can now type-check the int
pointer type.

Note that there is still a small weirdness in the u32 function, which
has to convert it to a u64 temporary. This is because of how the packing
API works at the moment, but the weirdness is at least hidden from
callers of sja1105_xfer_u32 now.

Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2019-10-01 22:18:00 +03:00
committed by David S. Miller
parent 09c1b41255
commit dff79620c3
4 changed files with 47 additions and 32 deletions
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3
drivers/net/dsa/sja1105/sja1105_ptp.c
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@@ -327,8 +327,7 @@ static u64 sja1105_ptptsclk_read(const struct cyclecounter *cc)
u64 ptptsclk = 0;
int rc;
rc = sja1105_spi_send_int(priv, SPI_READ, regs->ptptsclk,
&ptptsclk, 8);
rc = sja1105_xfer_u64(priv, SPI_READ, regs->ptptsclk, &ptptsclk);
if (rc < 0)
dev_err_ratelimited(priv->ds->dev,
"failed to read ptp cycle counter: %d\n",