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| author | Bruce Allan <bruce.w.allan@intel.com> | 2011-03-19 03:27:20 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-14 06:17:06 +0400 |
| commit | 1bba4386ab4f67a53c9649268dd9c83bc6110a9b (patch) | |
| tree | 5519c317c5f2828422c7cb44fa6251bae5b5aff9 /drivers/net/e1000e/lib.c | |
| parent | 563988dcfe706457ec7049d59e18d6147179bb0a (diff) | |
| download | linux-1bba4386ab4f67a53c9649268dd9c83bc6110a9b.tar.xz | |
e1000e: convert short duration msleep() to usleep_range()
With durations less than 20ms, the jiffies or legacy timer backed msleep()
may sleep ~20ms which might not be what the caller expects. Instead, it
is recommended to use the hrtimers backed usleep_range(). For more, see
Documentation/timers/timers-howto.txt. Issues reported by checkpatch.
In addition, remove unnecessary sleep in e1000e_write_nvm_spi().
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/e1000e/lib.c')
| -rw-r--r-- | drivers/net/e1000e/lib.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c index 96921de5df2e..30ef8fa4968c 100644 --- a/drivers/net/e1000e/lib.c +++ b/drivers/net/e1000e/lib.c @@ -868,7 +868,7 @@ static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw) * milliseconds even if the other end is doing it in SW). */ for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) { - msleep(10); + usleep_range(10000, 20000); status = er32(STATUS); if (status & E1000_STATUS_LU) break; @@ -930,7 +930,7 @@ s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw) ew32(CTRL, ctrl); e1e_flush(); - msleep(1); + usleep_range(1000, 2000); /* * For these adapters, the SW definable pin 1 is set when the optics @@ -1385,7 +1385,7 @@ s32 e1000e_get_auto_rd_done(struct e1000_hw *hw) while (i < AUTO_READ_DONE_TIMEOUT) { if (er32(EECD) & E1000_EECD_AUTO_RD) break; - msleep(1); + usleep_range(1000, 2000); i++; } @@ -2087,8 +2087,6 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) if (ret_val) return ret_val; - msleep(10); - while (widx < words) { u8 write_opcode = NVM_WRITE_OPCODE_SPI; @@ -2132,7 +2130,7 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) } } - msleep(10); + usleep_range(10000, 20000); nvm->ops.release(hw); return 0; } |