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Date: Sat, 28 Jan 2017 23:11:50 +0100
From: Ingo Molnar <mingo@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Andy Lutomirski <luto@...capital.net>,
Borislav Petkov <bp@...en8.de>,
"H . Peter Anvin" <hpa@...or.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Peter Zijlstra <peterz@...radead.org>,
Thomas Gleixner <tglx@...utronix.de>,
Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 29/50] x86/boot/e820: Rename sanitize_e820_table() to e820__update_table()
sanitize_e820_table() is a minor misnomer in that it suggests that
the E820 table requires sanitizing - which implies that it will only
do anything if the E820 table is irregular (not sane).
That is wrong, because sanitize_e820_table() also does a very regular
sorting of the E820 table, which is a necessity in the basic
append-only flow of E820 updates the kernel is allowed to perform to
it.
So rename it to e820__update_table() to include that purpose as well.
This also lines up all the table-update functions into a coherent
naming family:
int e820__update_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map);
void e820__update_table_print(void);
void e820__update_table_firmware(void);
No change in functionality.
Cc: Alex Thorlton <athorlton@....com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Huang, Ying <ying.huang@...el.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Juergen Gross <jgross@...e.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Paul Jackson <pj@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Rafael J. Wysocki <rjw@...k.pl>
Cc: Tejun Heo <tj@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Wei Yang <richard.weiyang@...il.com>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
arch/x86/include/asm/e820/api.h | 2 +-
arch/x86/include/asm/e820/types.h | 2 +-
arch/x86/kernel/e820.c | 16 ++++++++--------
arch/x86/kernel/early-quirks.c | 2 +-
arch/x86/kernel/setup.c | 4 ++--
arch/x86/platform/efi/efi.c | 2 +-
arch/x86/xen/setup.c | 6 +++---
7 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index 6dc8570b5553..9f3917805fc6 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -12,7 +12,7 @@ extern int e820_any_mapped(u64 start, u64 end, unsigned type);
extern int e820_all_mapped(u64 start, u64 end, unsigned type);
extern void e820_add_region(u64 start, u64 size, int type);
extern void e820_print_map(char *who);
-extern int sanitize_e820_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map);
+extern int e820__update_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map);
extern u64 e820_update_range(u64 start, u64 size, unsigned old_type, unsigned new_type);
extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type, int checktype);
extern void e820__update_table_print(void);
diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
index e9d811afc123..da9477d78214 100644
--- a/arch/x86/include/asm/e820/types.h
+++ b/arch/x86/include/asm/e820/types.h
@@ -21,7 +21,7 @@
*
* This allows for bootstrap/firmware quirks such as possible duplicate
* E820 entries that might need room in the same arrays, prior to the
- * call to sanitize_e820_table() to remove duplicates. The allowance
+ * call to e820__update_table() to remove duplicates. The allowance
* of three memory map entries per node is "enough" entries for
* the initial hardware platform motivating this mechanism to make
* use of additional EFI map entries. Future platforms may want
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 03af13c3c431..0053c9f1f6e2 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -193,7 +193,7 @@ void __init e820_print_map(char *who)
* sanitizing succeeds the *pnr_map will be updated with the new
* number of valid entries (something no more than max_nr_map).
*
- * The return value from sanitize_e820_table() is zero if it
+ * The return value from e820__update_table() is zero if it
* successfully 'sanitized' the map entries passed in, and is -1
* if it did nothing, which can happen if either of (1) it was
* only passed one map entry, or (2) any of the input map entries
@@ -259,7 +259,7 @@ static int __init cpcompare(const void *a, const void *b)
return (ap->addr != ap->pbios->addr) - (bp->addr != bp->pbios->addr);
}
-int __init sanitize_e820_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map)
+int __init e820__update_table(struct e820_entry *biosmap, int max_nr_map, u32 *pnr_map)
{
static struct change_member change_point_list[2*E820_X_MAX] __initdata;
static struct change_member *change_point[2*E820_X_MAX] __initdata;
@@ -548,7 +548,7 @@ u64 __init e820_remove_range(u64 start, u64 size, unsigned old_type, int checkty
void __init e820__update_table_print(void)
{
- if (sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries))
+ if (e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries))
return;
pr_info("e820: modified physical RAM map:\n");
@@ -557,7 +557,7 @@ void __init e820__update_table_print(void)
static void __init e820__update_table_firmware(void)
{
- sanitize_e820_table(e820_table_firmware->entries, ARRAY_SIZE(e820_table_firmware->entries), &e820_table_firmware->nr_entries);
+ e820__update_table(e820_table_firmware->entries, ARRAY_SIZE(e820_table_firmware->entries), &e820_table_firmware->nr_entries);
}
#define MAX_GAP_END 0x100000000ull
@@ -676,7 +676,7 @@ void __init e820__memory_setup_extended(u64 phys_addr, u32 data_len)
extmap = (struct e820_entry *)(sdata->data);
__append_e820_table(extmap, entries);
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
early_memunmap(sdata, data_len);
pr_info("e820: extended physical RAM map:\n");
@@ -931,7 +931,7 @@ void __init e820_reserve_setup_data(void)
early_memunmap(data, sizeof(*data));
}
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
memcpy(e820_table_firmware, e820_table, sizeof(struct e820_table));
printk(KERN_INFO "extended physical RAM map:\n");
e820_print_map("reserve setup_data");
@@ -945,7 +945,7 @@ void __init e820_reserve_setup_data(void)
void __init e820__finish_early_params(void)
{
if (userdef) {
- if (sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries) < 0)
+ if (e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries) < 0)
early_panic("Invalid user supplied memory map");
pr_info("e820: user-defined physical RAM map:\n");
@@ -1130,7 +1130,7 @@ char *__init e820__memory_setup_default(void)
* the next section from 1mb->appropriate_mem_k
*/
new_nr = boot_params.e820_entries;
- sanitize_e820_table(boot_params.e820_table, ARRAY_SIZE(boot_params.e820_table), &new_nr);
+ e820__update_table(boot_params.e820_table, ARRAY_SIZE(boot_params.e820_table), &new_nr);
boot_params.e820_entries = new_nr;
if (append_e820_table(boot_params.e820_table, boot_params.e820_entries) < 0) {
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 4f52758accbc..66722f447401 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -547,7 +547,7 @@ intel_graphics_stolen(int num, int slot, int func,
/* Mark this space as reserved */
e820_add_region(base, size, E820_RESERVED);
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
}
static void __init intel_graphics_quirks(int num, int slot, int func)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index a31c5bc99635..e8ec0c693a77 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -740,7 +740,7 @@ static void __init trim_bios_range(void)
*/
e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
}
/* called before trim_bios_range() to spare extra sanitize */
@@ -1033,7 +1033,7 @@ void __init setup_arch(char **cmdline_p)
if (ppro_with_ram_bug()) {
e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
E820_RESERVED);
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
printk(KERN_INFO "fixed physical RAM map:\n");
e820_print_map("bad_ppro");
}
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index b69199165610..3a8f11ef6bfe 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -167,7 +167,7 @@ static void __init do_add_efi_memmap(void)
}
e820_add_region(start, size, e820_type);
}
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
}
int __init efi_memblock_x86_reserve_range(void)
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 8b26b9282070..c2f8e4ab55bd 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -783,7 +783,7 @@ char * __init xen_memory_setup(void)
xen_ignore_unusable();
/* Make sure the Xen-supplied memory map is well-ordered. */
- sanitize_e820_table(xen_e820_table, ARRAY_SIZE(xen_e820_table),
+ e820__update_table(xen_e820_table, ARRAY_SIZE(xen_e820_table),
&xen_e820_table_entries);
max_pages = xen_get_max_pages();
@@ -861,7 +861,7 @@ char * __init xen_memory_setup(void)
e820_add_region(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS,
E820_RESERVED);
- sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
+ e820__update_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries);
/*
* Check whether the kernel itself conflicts with the target E820 map.
@@ -932,7 +932,7 @@ char * __init xen_auto_xlated_memory_setup(void)
xen_e820_table_entries = memmap.nr_entries;
- sanitize_e820_table(xen_e820_table, ARRAY_SIZE(xen_e820_table),
+ e820__update_table(xen_e820_table, ARRAY_SIZE(xen_e820_table),
&xen_e820_table_entries);
for (i = 0; i < xen_e820_table_entries; i++)
--
2.7.4
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