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authorManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2025-02-25 08:34:46 +0300
committerJeff Johnson <jeff.johnson@oss.qualcomm.com>2025-02-27 20:05:28 +0300
commitb43b1e2c52db77c872bd60d30cdcc72c47df70c7 (patch)
treeceb7d582fc3966f5a7baa2940e4e3befd5c11bb9 /tools/perf/scripts/python
parent68410c5bd381a81bcc92b808e7dc4e6b9ed25d11 (diff)
downloadlinux-b43b1e2c52db77c872bd60d30cdcc72c47df70c7.tar.xz
wifi: ath12k: Clear affinity hint before calling ath12k_pci_free_irq() in error path
If a shared IRQ is used by the driver due to platform limitation, then the IRQ affinity hint is set right after the allocation of IRQ vectors in ath12k_pci_msi_alloc(). This does no harm unless one of the functions requesting the IRQ fails and attempt to free the IRQ. This may end up with a warning from the IRQ core that is expecting the affinity hint to be cleared before freeing the IRQ: kernel/irq/manage.c: /* make sure affinity_hint is cleaned up */ if (WARN_ON_ONCE(desc->affinity_hint)) desc->affinity_hint = NULL; So to fix this issue, clear the IRQ affinity hint before calling ath12k_pci_free_irq() in the error path. The affinity will be cleared once again further down the error path due to code organization, but that does no harm. Fixes: a3012f206d07 ("wifi: ath12k: set IRQ affinity to CPU0 in case of one MSI vector") Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com> Link: https://patch.msgid.link/20250225053447.16824-3-manivannan.sadhasivam@linaro.org Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Diffstat (limited to 'tools/perf/scripts/python')
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