Re: [PATCH v2 0/4] Define i2c_designware in a header file

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On 4/25/24 3:26 AM, Florian Fainelli wrote:
This patch series depends upon the following two patches being applied:

https://lore.kernel.org/all/20240422084109.3201-1-duanqiangwen@xxxxxxxxxxxxx/
https://lore.kernel.org/all/20240422084109.3201-2-duanqiangwen@xxxxxxxxxxxxx/

There is no reason why each driver should have to repeat the
"i2c_designware" string all over the place, because when that happens we
see the reverts like the above being necessary.

Changes in v2:

- avoid changing i2c-designware-pcidrv.c more than necessary
- move constant to include/linux/platform_data/i2c-designware.h
- add comments as to how this constant is used and why

Florian Fainelli (4):
   i2c: designware: Create shared header hosting driver name
   mfd: intel-lpss: Utilize i2c-designware.h
   mfd: intel_quark_i2c_gpio: Utilize i2c-designware.h
   net: txgbe: Utilize i2c-designware.h

  MAINTAINERS                                    |  1 +
  drivers/i2c/busses/i2c-designware-pcidrv.c     |  3 ++-
  drivers/i2c/busses/i2c-designware-platdrv.c    |  5 +++--
  drivers/mfd/intel-lpss.c                       |  3 ++-
  drivers/mfd/intel_quark_i2c_gpio.c             |  5 +++--
  drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c |  7 ++++---
  include/linux/platform_data/i2c-designware.h   | 11 +++++++++++
  7 files changed, 26 insertions(+), 9 deletions(-)
  create mode 100644 include/linux/platform_data/i2c-designware.h

I have mixed feeling about this set will it help maintaining and developing new code or do the opposite. Surely misnaming as referenced above can happen but I think it's not too common pattern while having single define header put under include/ feels added burden.

Also I personally like explicit strings put into MODULE_ALIAS() since they are easier to grep from sources and modules.alias file when debugging autoloading issues. So change like below makes that debugging one step more labor.

-MODULE_ALIAS("platform:i2c_designware");
+MODULE_ALIAS("platform:" I2C_DESIGNWARE_NAME);




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