On Sat, Sep 17, 2022 at 03:21:34PM +0200, Stanislaw Gruszka wrote: > On Sat, Sep 17, 2022 at 03:10:53PM +0200, Stanislaw Gruszka wrote: > > On Sat, Sep 17, 2022 at 12:04:21AM +0100, Daniel Golle wrote: > > > From: Tomislav Požega <pozega.tomislav@xxxxxxxxx> > > > > > > This patch fixes following crash on Linksys EA2750 during 5GHz wifi > > > init: > > > > > > [ 7.955153] rt2800pci 0000:01:00.0: card - bus=0x1, slot = 0x0 irq=4 > > > [ 7.962259] rt2800pci 0000:01:00.0: loaded eeprom from mtd device "Factory" > > > [ 7.969435] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 5592, rev 0222 detected > > > [ 7.977348] ieee80211 phy0: rt2800_init_eeprom: Error - Invalid RF chipset 0x0000 detected > > > [ 7.985793] ieee80211 phy0: rt2x00lib_probe_dev: Error - Failed to allocate device > > > [ 7.993569] CPU 0 Unable to handle kernel paging request at virtual address 00000024, epc == 800c8f54, ra == 80249ff8 > > > [ 8.004408] Oops[#1]: > > > > > > Signed-off-by: Tomislav Požega <pozega.tomislav@xxxxxxxxx> > > > > Please add your's signed-off-by and fix the changelog. Patch > > fixes incorrect rf value encoded in eeprom, not a crash. IIRC > > crash itself was caused by incorrect rt2x00->eeprom_file pointer, > > happend when rt2800_init_eeprom() returned error. And should > > be alredy fixed in openwrt tree. > > The crash was fixed by: > https://patchwork.ozlabs.org/project/openwrt/patch/1551000198-30901-1-git-send-email-sgruszka@xxxxxxxxxx/ Yes, the itself has been fixed. For working wifi it's just the RF value in EEPROM which needs overriding with RT5592 PCIe radio (a single chip with built-in RF frontend), which is also what the vendor driver does afair. I will update the commit message in v2.
