On 28 April 2014 12:53, Lee Jones <lee.jones@xxxxxxxxxx> wrote: >> From: Micky Ching <micky_ching@xxxxxxxxxxxxxx> >> >> This reverts commit c42deffd5b53c9e583d83c7964854ede2f12410d. > > Why was this patch even merged without an MFD Ack? > >> commit <mmc: rtsx: add support for pre_req and post_req> did use >> mutex_unlock() in tasklet, but mutex_unlock() can't used in >> tasklet(atomic context). The driver need use mutex to avoid concurrency, >> so we can't use tasklet here, the patch need to be removed. >> >> The spinlock host->lock and pcr->lock may deadlock, one way to solve the >> deadlock is remove host->lock in sd_isr_done_transfer(), but if using >> workqueue the we can avoid using the spinlock and also avoid the problem. >> >> Signed-off-by: Micky Ching <micky_ching@xxxxxxxxxxxxxx> >> --- >> drivers/mfd/rtsx_pcr.c | 132 ++++-------- >> drivers/mmc/host/rtsx_pci_sdmmc.c | 418 ++++++------------------------------- >> include/linux/mfd/rtsx_common.h | 1 - >> include/linux/mfd/rtsx_pci.h | 6 - >> 4 files changed, 109 insertions(+), 448 deletions(-) > > This patch should be sent to the -rcs as soon as possible: Do you mind helping out doing it here Lee? Not sure how busy Chris is at the moment. Kind regards Ulf Hansson > > Acked-by: Lee Jones <lee.jones@xxxxxxxxxx> > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
