On Mon, Nov 07, 2016 at 04:26:18PM +0100, Wolfram Sang wrote: > On Mon, Nov 07, 2016 at 04:14:41PM +0100, Simon Horman wrote: > > From: Takatoshi Akiyama <takatoshi.akiyama.kj@xxxxxxxxxxxxxxxxxxxxxxxx> > > > > While spin is already locked, serial output request causes the deadlock, > > because serial output process also tries to lock the spin. > > This patch removes serial output with spin locked. > > > > Signed-off-by: Takatoshi Akiyama <takatoshi.akiyama.kj@xxxxxxxxxxxxxxxxxxxxxxxx> > > Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx> > > Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > > --- > > This is a patch from the Gen3 3.3.2 BSP. > > Geert, please consider it for mainline. > > > > Two approaches are mixed here: simply removing log messages that would > > cause a deadlock; and moving log messages to outside the lock. Some > > consideration was given (by Simon) to a more consistent approach of > > simply removing all log messages in question. However this was taken as > > logging ouside of the lock seems consistent with other logging in > > rx_timer_fn() and sci_dma_rx_complete(). > > Acked-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> > > Simon, could you use the 'wsa+renesas' email address in the future? That > would make things a tad easier for me. Thanks! Sure, I will try to do that. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
