[patch 112/178] powerpc/xive: remove unnecessary unmap_kernel_range

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From: Nicholas Piggin <npiggin@xxxxxxxxx>
Subject: powerpc/xive: remove unnecessary unmap_kernel_range

iounmap will remove ptes.

Link: https://lkml.kernel.org/r/20210322021806.892164-4-npiggin@xxxxxxxxx
Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Cédric Le Goater <clg@xxxxxxxx>
Cc: Uladzislau Rezki <urezki@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 arch/powerpc/sysdev/xive/common.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/arch/powerpc/sysdev/xive/common.c~powerpc-xive-remove-unnecessary-unmap_kernel_range
+++ a/arch/powerpc/sysdev/xive/common.c
@@ -959,16 +959,12 @@ EXPORT_SYMBOL_GPL(is_xive_irq);
 void xive_cleanup_irq_data(struct xive_irq_data *xd)
 {
 	if (xd->eoi_mmio) {
-		unmap_kernel_range((unsigned long)xd->eoi_mmio,
-				   1u << xd->esb_shift);
 		iounmap(xd->eoi_mmio);
 		if (xd->eoi_mmio == xd->trig_mmio)
 			xd->trig_mmio = NULL;
 		xd->eoi_mmio = NULL;
 	}
 	if (xd->trig_mmio) {
-		unmap_kernel_range((unsigned long)xd->trig_mmio,
-				   1u << xd->esb_shift);
 		iounmap(xd->trig_mmio);
 		xd->trig_mmio = NULL;
 	}
_





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