1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

The Staging Merge For Linux 3.2 Kernel Is Huge

Linux Kernel

Published on 25 October 2011 11:10 AM EDT
Written by Michael Larabel in Linux Kernel
5 Comments

Linus Torvalds was worried that the Linux 3.2 kernel might be of a worrying size due to the belated release of Linux 3.1. Merge requests are now starting to come in for the Linux 3.2 kernel and the staging merge alone touches several hundred thousand lines of code.

Greg Kroah-Hartman sent in the "big staging merge for 3.2" this morning to Linus. Greg writes, "there's a lot of patches in here, and the overall diff is quite impressive." There's some 103,718 lines of new code, but there is 230,262 lines of code that were removed from the tree. So while there is still lots of new code, it's actually a net decrease in the total number of lines of code.

The changes are attributed to several drivers being taken out of the Linux kernel staging area. The "ath6kl" driver, which is the open-source driver for the Atheros AR600x series of wireless chipsets, has been replaced by a better driver in the kernel's wireless tree. A Broadcom WiFi driver also made it out of staging. Microsoft's HyperV bus core code is also preparing to leave the kernel staging area.

The Broadcom WiFi drivers leaving the staging area is brcmfmac and brcmsmac. The brcmfmac is for the BCM4329 ASIC. Brcmsmac is the open-source bcrm80211 driver for the BCM4313 (0x4727), BCM43224 (0x0576 and 0x4353), and BCM43225 (0x4357) chips.

Some of the staging driver updates include changes to the Crystal HD, cx25821 (a Conexant driver for video surveillance), et131x (the Agere ET131x ethernet driver), the Intel Poulksbo/GMA500 driver, and rtl8192e (a Realtek WLAN chipset driver). The XGI frame-buffer (xgifb) driver has also received several thousand lines of updates. The XGI updates seem to be mostly fixes and other minor work, but nothing too exciting, especially as it's for the fb driver and not some magical KMS component. There's also a new Linux staging driver for the Realtek RTS5139 card-reader.

In total there are 1519 patches for the staging tree in the Linux 3.2 kernel merge window. You can read Greg's 3.2 staging merge request on the kernel mailing list.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Fedora Doesn't Yet Enable F2FS File-System Support
  2. XZ 5.2 Adds New Multi-Threaded Options
  3. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  4. Server-Side XCB Is Being Discussed For The X.Org Server
  5. Adreno A4xx Rendering With Freedreno Takes Shape
  6. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  7. X.Org Server 1.16.3 Released To Fix Security Issues
  8. Linux 3.19 Merge Window Closes Ahead Of Schedule
  9. MIPS R6 Architecture Now Supported By GCC
  10. LowRISC To Feature Tagged Memory & Minion Cores
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Maker3D - create your 3D RPG
  3. Need some hand holding with upgrading xserver
  4. Speeding up systemd networking service
  5. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  6. Looking for an nVidia GPU, but not sure how well they are supported.
  7. Are there an app using HSA ?
  8. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems