linux-kernel - [PATCH 4.19 153/191] powerpc/drmem: Make lmb

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Date:   Tue,  3 Nov 2020 21:37:25 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Nathan Lynch <nathanl@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 4.19 153/191] powerpc/drmem: Make lmb_size 64 bit

From: Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com>

commit ec72024e35dddb88a81e40071c87ceb18b5ee835 upstream.

Similar to commit 89c140bbaeee ("pseries: Fix 64 bit logical memory block panic")
make sure different variables tracking lmb_size are updated to be 64 bit.

This was found by code audit.

Cc: stable@...r.kernel.org
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com>
Acked-by: Nathan Lynch <nathanl@...ux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Link: https://lore.kernel.org/r/20201007114836.282468-2-aneesh.kumar@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/powerpc/include/asm/drmem.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/include/asm/drmem.h
+++ b/arch/powerpc/include/asm/drmem.h
@@ -24,7 +24,7 @@ struct drmem_lmb {
 struct drmem_lmb_info {
 	struct drmem_lmb        *lmbs;
 	int                     n_lmbs;
-	u32                     lmb_size;
+	u64                     lmb_size;
 };
 
 extern struct drmem_lmb_info *drmem_info;
@@ -83,7 +83,7 @@ struct of_drconf_cell_v2 {
 #define DRCONF_MEM_AI_INVALID	0x00000040
 #define DRCONF_MEM_RESERVED	0x00000080
 
-static inline u32 drmem_lmb_size(void)
+static inline u64 drmem_lmb_size(void)
 {
 	return drmem_info->lmb_size;
 }