Chunyan Zhang <zhang.chun...@linaro.org> writes: > sw_end represents the last software master, sw_start is index of the > first master, so the number of software masters should be > sw_end - sw_start + 1.
Looks about right, but it needs to be in two separate patches. > Signed-off-by: Chunyan Zhang <zhang.chun...@linaro.org> > --- > drivers/hwtracing/intel_th/sth.c | 2 +- > drivers/hwtracing/stm/core.c | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/hwtracing/intel_th/sth.c > b/drivers/hwtracing/intel_th/sth.c > index 56101c3..28917d7 100644 > --- a/drivers/hwtracing/intel_th/sth.c > +++ b/drivers/hwtracing/intel_th/sth.c > @@ -173,7 +173,7 @@ static int intel_th_sw_init(struct sth_device *sth) > sth->stm.sw_start = reg & 0xffff; > sth->stm.sw_end = reg >> 16; > > - sth->sw_nmasters = sth->stm.sw_end - sth->stm.sw_start; > + sth->sw_nmasters = sth->stm.sw_end - sth->stm.sw_start + 1; > dev_dbg(sth->dev, "sw_start: %x sw_end: %x masters: %x nchannels: %x\n", > sth->stm.sw_start, sth->stm.sw_end, sth->sw_nmasters, > sth->stm.sw_nchannels); > diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c > index 7f7bdb3..cb676f2 100644 > --- a/drivers/hwtracing/stm/core.c > +++ b/drivers/hwtracing/stm/core.c > @@ -632,7 +632,7 @@ int stm_register_device(struct device *parent, struct > stm_data *stm_data, > if (!stm_data->packet || !stm_data->sw_nchannels) > return -EINVAL; > > - nmasters = stm_data->sw_end - stm_data->sw_start; > + nmasters = stm_data->sw_end - stm_data->sw_start + 1; > stm = kzalloc(sizeof(*stm) + nmasters * sizeof(void *), GFP_KERNEL); Or even offsetof(struct stm_device, masters[stm_data->sw_end]). > if (!stm) > return -ENOMEM; > -- > 1.9.1 This is a very old version on git, btw. :) Thanks, -- Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
