linux-kernel - [PATCH v2 01/17] powerpc/mm: Don't BUG() in hugepd

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Message-Id: <ff4366d14b3ef4de6af835a880a772477577139f.1556258135.git.christophe.leroy@c-s.fr>
Date:   Fri, 26 Apr 2019 05:59:36 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        aneesh.kumar@...ux.ibm.com
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v2 01/17] powerpc/mm: Don't BUG() in hugepd_page()

Use VM_BUG_ON() instead of BUG_ON(), as those BUG_ON()
are not there to catch runtime errors but to catch errors
during development cycle only.

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
 arch/powerpc/include/asm/hugetlb.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 8d40565ad0c3..7f1867e428c0 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -14,7 +14,7 @@
  */
 static inline pte_t *hugepd_page(hugepd_t hpd)
 {
-	BUG_ON(!hugepd_ok(hpd));
+	VM_BUG_ON(!hugepd_ok(hpd));
 	/*
 	 * We have only four bits to encode, MMU page size
 	 */
@@ -42,7 +42,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 
 static inline pte_t *hugepd_page(hugepd_t hpd)
 {
-	BUG_ON(!hugepd_ok(hpd));
+	VM_BUG_ON(!hugepd_ok(hpd));
 #ifdef CONFIG_PPC_8xx
 	return (pte_t *)__va(hpd_val(hpd) & ~HUGEPD_SHIFT_MASK);
 #else
-- 
2.13.3