linux-kernel - [PATCH v3 19/21] x86/kaslr: Replace unsigned long long with u64

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Message-Id: <20200728225722.67457-20-nivedita@alum.mit.edu>
Date:   Tue, 28 Jul 2020 18:57:20 -0400
From:   Arvind Sankar <nivedita@...m.mit.edu>
To:     Kees Cook <keescook@...omium.org>, x86@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH v3 19/21] x86/kaslr: Replace unsigned long long with u64

No functional change.

Signed-off-by: Arvind Sankar <nivedita@...m.mit.edu>
---
 arch/x86/boot/compressed/kaslr.c | 13 ++++++-------
 arch/x86/boot/compressed/misc.h  |  4 ++--
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index b6ef77b644bd..c49d479245d0 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -98,7 +98,7 @@ static bool memmap_too_large;
  * Store memory limit: MAXMEM on 64-bit and KERNEL_IMAGE_SIZE on 32-bit.
  * It may be reduced by "mem=nn[KMG]" or "memmap=nn[KMG]" command line options.
  */
-static unsigned long long mem_limit;
+static u64 mem_limit;
 
 /* Number of immovable memory regions */
 static int num_immovable_mem;
@@ -141,8 +141,7 @@ enum parse_mode {
 };
 
 static int
-parse_memmap(char *p, unsigned long long *start, unsigned long long *size,
-		enum parse_mode mode)
+parse_memmap(char *p, u64 *start, u64 *size, enum parse_mode mode)
 {
 	char *oldp;
 
@@ -172,7 +171,7 @@ parse_memmap(char *p, unsigned long long *start, unsigned long long *size,
 			 */
 			*size = 0;
 		} else {
-			unsigned long long flags;
+			u64 flags;
 
 			/*
 			 * efi_fake_mem=nn@ss:attr the attr specifies
@@ -211,7 +210,7 @@ static void mem_avoid_memmap(enum parse_mode mode, char *str)
 
 	while (str && (i < MAX_MEMMAP_REGIONS)) {
 		int rc;
-		unsigned long long start, size;
+		u64 start, size;
 		char *k = strchr(str, ',');
 
 		if (k)
@@ -611,7 +610,7 @@ static void __process_mem_region(struct mem_vector *entry,
 	unsigned long region_end;
 
 	/* Enforce minimum and memory limit. */
-	region.start = max_t(unsigned long long, entry->start, minimum);
+	region.start = max_t(u64, entry->start, minimum);
 	region_end = min(entry->start + entry->size, mem_limit);
 
 	/* Give up if slot area array is full. */
@@ -672,7 +671,7 @@ static bool process_mem_region(struct mem_vector *region,
 	 * immovable memory and @region.
 	 */
 	for (i = 0; i < num_immovable_mem; i++) {
-		unsigned long long start, end, entry_end, region_end;
+		u64 start, end, entry_end, region_end;
 		struct mem_vector entry;
 
 		if (!mem_overlaps(region, &immovable_mem[i]))
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 726e264410ff..3efce27ba35c 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -70,8 +70,8 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize);
 int cmdline_find_option_bool(const char *option);
 
 struct mem_vector {
-	unsigned long long start;
-	unsigned long long size;
+	u64 start;
+	u64 size;
 };
 
 #if CONFIG_RANDOMIZE_BASE
-- 
2.26.2