Hello Felipe and linux-usb community, This is a collection of UAC fixes, some of which have been written back in 2016 on top of v3.14. v4.13-rc1 commit eb9fecb9e69b ("usb: gadget: f_uac2: split out audio core") made forward-porting of these patches to recent kernels quite painful and time-consuming, so we decided to re-base them against v4.18-rc1, re-test and share them with community. These changes have already undergone internal review, which includes: * static analysis: - checkpatch --strict, cppcheck, smatch, sparse, coccicheck, make W=1 * dynamic testing: - Audio playback on host side and recording on gadget side, where the latter is RCAR Gen3 Salvator-X arm64 target and the former is a Ubuntu PC or an appropriate USB port on the same RCAR target. The kernel was compiled with and w/o KA/UB sanitizers. The "older" patches actually live in real Customer products. Thank you in advance for any feedback/review comments. Best regards, Eugeniu. Contributors (auto-generated by git) Andreas Pape (1): usb: gadget: f_uac2: disable IN/OUT ep if unused Eugeniu Rosca (2): usb: gadget: f_uac2: fix error handling in afunc_bind (again) usb: gadget: u_audio: fix pcm/card naming in g_audio_setup() Joshua Frkuska (1): usb: gadget: u_audio: update hw_ptr in iso_complete after data copied Vladimir Zapolskiy (3): usb: gadget: u_audio: remove caching of stream buffer parameters usb: gadget: u_audio: remove cached period bytes value usb: gadget: u_audio: protect stream runtime fields with stream spinlock drivers/usb/gadget/function/f_uac2.c | 216 ++++++++++++++++++++------ drivers/usb/gadget/function/u_audio.c | 88 ++++------- 2 files changed, 205 insertions(+), 99 deletions(-) -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html