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qcacmn: fix GFP flag for memory allocation

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As per implementation of might_sleep(), rcu_read_lock()
nesting depth should be taken into consideration too to
figure out whether sleeping is allowable or not.
To make align with it, allocate memory with GFP_ATOMIC
if rcu_read_lock() nesting depth is not zero.

Change-Id: I83c042827db4024cedf4f043a4243e399a33f6e5
CRs-Fixed: 3272683
This commit is contained in:
Yu Wang
2022-08-19 01:24:20 +08:00
committed by Madan Koyyalamudi
parent adbb77002a
commit c520d7fe83
1 changed files with 1 additions and 1 deletions
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2
qdf/linux/src/qdf_mem.c
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@@ -510,7 +510,7 @@ qdf_export_symbol(prealloc_disabled);
int qdf_mem_malloc_flags(void) int qdf_mem_malloc_flags(void)
{ {
if (in_interrupt() || irqs_disabled() || in_atomic()) if (in_interrupt() || !preemptible() || rcu_preempt_depth())
return GFP_ATOMIC; return GFP_ATOMIC;
return GFP_KERNEL; return GFP_KERNEL;