[PATCH] mm: memcontrol: fix compilation

[Bert Karwatzki <spasswolf@web.de>]

Signed-off-by: Bert Karwatzki <spasswolf@web.de>
---
 mm/memcontrol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5b9e0ebd42ae..e50135df6e82 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -71,6 +71,7 @@
 #include "memcontrol-v1.h"
 
 #include <linux/uaccess.h>
+#include <linux/irq_work.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/memcg.h>
-- 
2.55.0

In next-20260904 compilation fails with this error:

mm/memcontrol.c: In function ‘try_charge_memcg’:
mm/memcontrol.c:2859:41: error: implicit declaration of function ‘irq_work_queue’; did you mean ‘drain_workqueue’? [-Wimplicit-function-declaration]
 2859 |                                         irq_work_queue(&memcg->high_irq_work);
      |                                         ^~~~~~~~~~~~~~
      |                                         drain_workqueue
  CC [M]  drivers/usb/typec/ucsi/ucsi.o
  CC [M]  drivers/usb/typec/tipd/core.o
mm/memcontrol.c: In function ‘mem_cgroup_alloc’:
mm/memcontrol.c:4234:9: error: implicit declaration of function ‘init_irq_work’; did you mean ‘init_irq_proc’? [-Wimplicit-function-declaration]
 4234 |         init_irq_work(&memcg->high_irq_work, high_irq_work_func);
      |         ^~~~~~~~~~~~~
      |         init_irq_proc
  CC [M]  drivers/net/wireless/mediatek/mt76/mt792x_acpi_sar.o
mm/memcontrol.c: In function ‘mem_cgroup_css_free’:
mm/memcontrol.c:4443:9: error: implicit declaration of function ‘irq_work_sync’ [-Wimplicit-function-declaration]
 4443 |         irq_work_sync(&memcg->high_irq_work);
      |         ^~~~~~~~~~~~~

explicitly including include/linux/irq_work.h fixes the issue.

Bert Karwatzki