Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1425059
| From | Prasun Maiti <prasunmaiti87@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [Query] mwifiex: few observations to reduce number of endian conversions |
| Date | 2016-06-17 15:20 +0200 |
| Message-ID | <rL1QJ-70p-1@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Hi Amitkumar, I have two observations: 1. I have found that in the command response path for host command "HostCmd_CMD_802_11_EEPROM_ACCESS", a "0" value has been endian converted. It can only be a safe futuristic approach for any non-zero value there however! Otherwise, the endian conversion can be removed. 2. For multiple Host Commands (e.g HostCmd_CMD_802_11_EEPROM_ACCESS etc.) "cpu_to_leX"-converted values are saved to driver. So "leX_to_cpu" conversion is required too many times afterwards in driver. On the contrary, we can save the values to driver without any conversion, and only command buffer(s) are prepared with endian converted values. In this way we can gain some efficiency [code size / time] by reducing the number of endian conversion considerably. Please let me know your opinion on the above. -- Thanks, Prasun
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[Query] mwifiex: few observations to reduce number of endian conversions Prasun Maiti <prasunmaiti87@gmail.com> - 2016-06-17 15:20 +0200
RE: [Query] mwifiex: few observations to reduce number of endian conversions Amitkumar Karwar <akarwar@marvell.com> - 2016-06-21 12:20 +0200
Re: [Query] mwifiex: few observations to reduce number of endian conversions Prasun Maiti <prasunmaiti87@gmail.com> - 2016-06-21 13:00 +0200
csiph-web