Bug 546281
| Summary: | wireless: report reasonable bitrate for MCS rates through wext | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | John W. Linville <linville> | ||||
| Component: | kernel | Assignee: | John W. Linville <linville> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 5.5 | CC: | cmeadors, dzickus, jwilson, kernel-mgr, rlerch | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-03-30 07:44:43 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 526948 | ||||||
| Attachments: |
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This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. in kernel-2.6.18-181.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5 Please update the appropriate value in the Verified field (cf_verified) to indicate this fix has been successfully verified. Include a comment with verification details. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2010-0178.html |
Created attachment 377485 [details] 0001-wireless-report-reasonable-bitrate-for-MCS-rates-th.patch 802.11n connections report bitrates using a different system than earlier 802.11 standards. As a results, the naive approach to reporting such bitrates through the wireless extensions interface (used by iwconfig and other tools) was to simply return 0 for the bitrate. This uninformative situation has led to a number of bug reports upstream and in Fedora, but these have mostly been ignored partly due to lack of a better solution and partly as a way to encourage people to use the newer iw tool. However, the iw tool is not available in RHEL5 and there are no plans to add it. Further, infrastructure has been added to support nl80211 that can now be used to support wireless extensions in reporting more useful numbers as well. The patch moves some code around, but the actual meat of the fix is only a few lines. Previous versions of RHEL5 have not dealt with MCS rates, so failure to include this fix (and therefore reporting bitrates of "0") will be seen as a regression by many customers...