[PATCH] intel tracing: consistency and off-by-one fix

From: Pavel Machek
Date: Wed Jul 24 2019 - 05:58:45 EST



Consistently use "< ... +1" in for loops.

Fix of-by-one in for_each_set_bit().

Signed-off-by: Pavel Machek <pavel@xxxxxxx>

diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index fa9d34a..11bc89c 100644
--- a/drivers/hwtracing/intel_th/gth.c
+++ b/drivers/hwtracing/intel_th/gth.c
@@ -543,7 +543,7 @@ static void intel_th_gth_disable(struct intel_th_device *thdev,
output->active = false;

for_each_set_bit(master, gth->output[output->port].master,
- TH_CONFIGURABLE_MASTERS) {
+ TH_CONFIGURABLE_MASTERS + 1) {
gth_master_set(gth, master, -1);
}
spin_unlock(&gth->gth_lock);
@@ -694,7 +694,7 @@ static void intel_th_gth_unassign(struct intel_th_device *thdev,
othdev->output.port = -1;
othdev->output.active = false;
gth->output[port].output = NULL;
- for (master = 0; master <= TH_CONFIGURABLE_MASTERS; master++)
+ for (master = 0; master < TH_CONFIGURABLE_MASTERS + 1; master++)
if (gth->master[master] == port)
gth->master[master] = -1;
spin_unlock(&gth->gth_lock);

--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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