diff options
| author | Huang Zijiang <[email protected]> | 2019-01-12 15:16:24 +0800 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2019-01-13 15:11:35 +0100 |
| commit | 345dca4ca7e65a46bf0b6e2e6b8ab2e998ec6e91 (patch) | |
| tree | abe535b4813151d4fcb6430812332fe2fa4a9116 | |
| parent | bfeffd155283772bbe78c6a05dec7c0128ee500c (diff) | |
x86/e820: Replace kmalloc() + memcpy() with kmemdup()
Use the equivalent kmemdup() directly instead of kmalloc() + memcpy().
No functional changes.
[ bp: rewrite commit message. ]
Signed-off-by: Huang Zijiang <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: [email protected]
Cc: Masayoshi Mizuma <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: x86-ml <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/kernel/e820.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 50895c2f937d..a687d10da417 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -671,21 +671,18 @@ __init void e820__reallocate_tables(void) int size; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table, size); e820_table = n; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_kexec->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table_kexec, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table_kexec, size); e820_table_kexec = n; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_firmware->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table_firmware, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table_firmware, size); e820_table_firmware = n; } |