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From:   "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To:     Yanfei Xu <yanfei.xu@windriver.com>
Cc:     rppt@kernel.org, ardb@kernel.org, linus.walleij@linaro.org,
        akpm@linux-foundation.org, carver4lio@163.com,
        tiantao6@hisilicon.com, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] ARM: change vmalloc_min to be unsigned long
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Message-Id: <E1liydQ-0004Po-2c@rmk-PC.armlinux.org.uk>
Sender: Russell King <rmk@armlinux.org.uk>
Date:   Tue, 18 May 2021 13:15:40 +0100
Precedence: bulk

vmalloc_min is currently a void pointer, but everywhere its used
contains a cast - either to a void pointer when setting or back to
an integer type when being used. Eliminate these casts by changing
its type to unsigned long.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 arch/arm/mm/mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index c06ebfbc48c4..206c345f063e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1123,8 +1123,8 @@ void __init debug_ll_io_init(void)
 }
 #endif
 
-static void * __initdata vmalloc_min =
-	(void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
+static unsigned long __initdata vmalloc_min =
+	VMALLOC_END - (240 << 20) - VMALLOC_OFFSET;
 
 /*
  * vmalloc=size forces the vmalloc area to be exactly 'size'
@@ -1147,7 +1147,7 @@ static int __init early_vmalloc(char *arg)
 			vmalloc_reserve >> 20);
 	}
 
-	vmalloc_min = (void *)(VMALLOC_END - vmalloc_reserve);
+	vmalloc_min = VMALLOC_END - vmalloc_reserve;
 	return 0;
 }
 early_param("vmalloc", early_vmalloc);
@@ -1167,7 +1167,7 @@ void __init adjust_lowmem_bounds(void)
 	 * and may itself be outside the valid range for which phys_addr_t
 	 * and therefore __pa() is defined.
 	 */
-	vmalloc_limit = (u64)(uintptr_t)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
+	vmalloc_limit = (u64)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
 
 	/*
 	 * The first usable region must be PMD aligned. Mark its start
-- 
2.20.1