Re: [PATCH 06/10] staging: r8188eu: remove DBG_88E calls from os_dep/ioctl_linux.c

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Greg,

On 1/26/22 13:48, Greg KH wrote:
IMHO the best thing you can do is to leave these reads and leave a comment
like "hey, please remove me and test". One day useless reads should be
anyway removed, since ideally rtw_read family must get __must_check
annotation + normal error handling.

No, if these were never getting called in normal operation, there's no
need to add them back.


I guess, I was not clear, sorry. I mean leave reads that were called during normal operations, but used only for printing debug info. (As Phillip has already done in v1)

Reads inside R88_DBG() and other debug macros of course should be removed, but other places seems dangerous without good testing. There is al least one place with following comment:

			/* Although lenc is only used in a debug statement,
			 * do not remove it as the rtw_read16() call consumes
			 * 2 bytes from the EEPROM source.
			 */
			u16 lenc = rtw_read16(adapter, REG_PKTBUF_DBG_DATA_L);

There is a chance that other places have same problem, but don't have a comment above it. That's why I suggested to leave all these "debug" reads and leave a comment for further work. It will help to easily spot them in future and remove or leave them with explanations why.




With regards,
Pavel Skripkin




[Index of Archives]     [Linux Driver Development]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux