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| author | Anton Altaparmakov <aia21@cantab.net> | 2005-06-25 14:27:27 +0100 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-06-25 14:27:27 +0100 |
| commit | 38b22b6e9f46ab8f73ef5734f0e0a000766a9258 (patch) | |
| tree | 2ccc41ef55918d3af43e444bde7648562a031559 /arch/i386/kernel/cpu/mtrr/main.c | |
| parent | 3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4 (diff) | |
| parent | b3e112bcc19abd8e9657dca34a87316786e096f3 (diff) | |
| download | op-kernel-dev-38b22b6e9f46ab8f73ef5734f0e0a000766a9258.zip op-kernel-dev-38b22b6e9f46ab8f73ef5734f0e0a000766a9258.tar.gz | |
Automerge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'arch/i386/kernel/cpu/mtrr/main.c')
| -rw-r--r-- | arch/i386/kernel/cpu/mtrr/main.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c index e1c2042..d66b09e 100644 --- a/arch/i386/kernel/cpu/mtrr/main.c +++ b/arch/i386/kernel/cpu/mtrr/main.c @@ -375,6 +375,19 @@ int mtrr_add_page(unsigned long base, unsigned long size, return error; } +static int mtrr_check(unsigned long base, unsigned long size) +{ + if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { + printk(KERN_WARNING + "mtrr: size and base must be multiples of 4 kiB\n"); + printk(KERN_DEBUG + "mtrr: size: 0x%lx base: 0x%lx\n", size, base); + dump_stack(); + return -1; + } + return 0; +} + /** * mtrr_add - Add a memory type region * @base: Physical base address of region @@ -415,11 +428,8 @@ int mtrr_add(unsigned long base, unsigned long size, unsigned int type, char increment) { - if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { - printk(KERN_WARNING "mtrr: size and base must be multiples of 4 kiB\n"); - printk(KERN_DEBUG "mtrr: size: 0x%lx base: 0x%lx\n", size, base); + if (mtrr_check(base, size)) return -EINVAL; - } return mtrr_add_page(base >> PAGE_SHIFT, size >> PAGE_SHIFT, type, increment); } @@ -511,11 +521,8 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size) int mtrr_del(int reg, unsigned long base, unsigned long size) { - if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { - printk(KERN_INFO "mtrr: size and base must be multiples of 4 kiB\n"); - printk(KERN_DEBUG "mtrr: size: 0x%lx base: 0x%lx\n", size, base); + if (mtrr_check(base, size)) return -EINVAL; - } return mtrr_del_page(reg, base >> PAGE_SHIFT, size >> PAGE_SHIFT); } |
