Larry Finger <Larry.Finger@xxxxxxxxxxxx> writes: > To all wireless developers: > > As you may have noticed, the udev layer is being changed. One of the > side effects is that the kernel may timeout when a driver uses > synchronous firmware loading. My rtlwifi drivers were affected, and a > kernel bugzilla has been logged against rtl8192se. I suggest that the > maintainers should be proactive, and convert to asynchronous loading > as soon as possible. Thanks for the summary, this was really useful. > In wireless-testing, the files listed below contain calls to > read_firmware() rather than read_firmware_nowait(): > > drivers/net/wireless/at76c50x-usb.c > drivers/net/wireless/ath/ath6kl/init.c > drivers/net/wireless/ath/ath9k/hif_usb.c > drivers/net/wireless/atmel.c > drivers/net/wireless/b43/main.c > drivers/net/wireless/b43legacy/main.c > drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c > drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c > drivers/net/wireless/ipw2x00/ipw2100.c > drivers/net/wireless/iwlegacy/3945-mac.c > drivers/net/wireless/iwlegacy/4965-mac.c > drivers/net/wireless/iwlwifi/iwl-agn.c > drivers/net/wireless/libertas/main.c > drivers/net/wireless/libertas/if_usb.c > drivers/net/wireless/libertas_tf/if_usb.c > drivers/net/wireless/mwifiex/main.c > drivers/net/wireless/mwl8k.c > drivers/net/wireless/orinoco/fw.c > drivers/net/wireless/orinoco/orinoco_usb.c > drivers/net/wireless/p54/p54spi.c > drivers/net/wireless/p54/p54usb.c > drivers/net/wireless/p54/p54pci.c > drivers/net/wireless/prism54/islpci_dev.c > drivers/net/wireless/rt2x00/rt2x00firmware.c > drivers/net/wireless/wl1251/main.c > drivers/net/wireless/zd1201.c > drivers/net/wireless/zd1211rw/zd_usb.c > > Some of the drivers above may be exempt as their firmware is built > into the kernel. I did not check for that case. But isn't the issue only when a firmware is requested synchronously during module init? For example, IIRC wl1251 loads the module during hw start and that should be safe, even when making a synchronous call. Or did I misunderstood something? -- Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
