Eric Lee / smarc-fsl-linux-kernel

Download as
Browse Code ยป

Commit 108aae22339f445c134aeb48eca25df1014ab08d

Authored by Paul E. McKenney
1 parent 561190e3b3
Exists in master and in 39 other branches 8mp-imx_5.4.70_2.3.0, 8qm-imx_5.4.70_2.3.0, emb_imx_lf-5.15.y, emb_lf-6.1.y, imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, imx_4.1.15_1.0.0_ga, pitx_8mp_lf-5.10.y, rt-smarc-imx_4.1.15_1.0.0_ga, rt_linux_5.15.71, smarc-8m-android-11.0.0_2.0.0, smarc-imx6_4.14.98_2.0.0_ga, smarc-imx6_4.9.88_2.0.0_ga, smarc-imx7_4.14.98_2.0.0_ga, smarc-imx7_4.9.11_1.0.0_ga, smarc-imx7_4.9.88_2.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-imx_4.1.15_1.0.0_ga, smarc-imx_4.9.11_1.0.0_ga, smarc-imx_4.9.51_imx8m_ga, smarc-imx_4.9.88_2.0.0_ga, smarc-m6.0.1_2.1.0-ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_1.2.0_ga, smarc_8m_00d0_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.14.78_1.0.0_ga, smarc_8m_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.19.35_1.1.0, smarc_8mm_imx_4.14.78_1.0.0_ga, smarc_8mm_imx_4.14.98_2.0.0_ga, smarc_8mm_imx_4.19.35_1.1.0, smarc_8mm_imx_5.4.24_2.1.0, smarc_8mp_lf-5.10.y, smarc_8mq_imx_5.4.24_2.1.0, smarc_8mq_lf-5.10.y, smarc_imx_lf-5.15.y

rcu: Use WARN_ON_ONCE for DEBUG_OBJECTS_RCU_HEAD warnings 

Avoid additional multiple-warning confusion in memory-corruption scenarios.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

Showing 1 changed file with 6 additions and 6 deletions Side-by-side Diff

... ... @@ -147,12 +147,12 @@
147 147 * attempt any fixup and just print a warning.
148 148 */
149 149 #ifndef CONFIG_PREEMPT
150   - WARN_ON(1);
  150 + WARN_ON_ONCE(1);
151 151 return 0;
152 152 #endif
153 153 if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
154 154 irqs_disabled()) {
155   - WARN_ON(1);
  155 + WARN_ON_ONCE(1);
156 156 return 0;
157 157 }
158 158 rcu_barrier();
159 159  
... ... @@ -196,12 +196,12 @@
196 196 * attempt any fixup and just print a warning.
197 197 */
198 198 #ifndef CONFIG_PREEMPT
199   - WARN_ON(1);
  199 + WARN_ON_ONCE(1);
200 200 return 0;
201 201 #endif
202 202 if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
203 203 irqs_disabled()) {
204   - WARN_ON(1);
  204 + WARN_ON_ONCE(1);
205 205 return 0;
206 206 }
207 207 rcu_barrier();
208 208  
... ... @@ -233,12 +233,12 @@
233 233 * attempt any fixup and just print a warning.
234 234 */
235 235 #ifndef CONFIG_PREEMPT
236   - WARN_ON(1);
  236 + WARN_ON_ONCE(1);
237 237 return 0;
238 238 #endif
239 239 if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
240 240 irqs_disabled()) {
241   - WARN_ON(1);
  241 + WARN_ON_ONCE(1);
242 242 return 0;
243 243 }
244 244 rcu_barrier();