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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-22 20:05:19 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-22 20:05:19 +0100 |
| commit | fc6fc7f1b1095b92d4834e69b385b91e412a7ce5 (patch) | |
| tree | 2ad451d5dac4d460830536944cef1de93be36b2a /drivers/pci/msi.c | |
| parent | ef1f87aa7ba6224bef1b750b3272ba281d8f43ed (diff) | |
| parent | 770824bdc421ff58a64db608294323571c949f4c (diff) | |
| download | kernel_samsung_smdk4412-fc6fc7f1b1095b92d4834e69b385b91e412a7ce5.tar.gz kernel_samsung_smdk4412-fc6fc7f1b1095b92d4834e69b385b91e412a7ce5.tar.bz2 kernel_samsung_smdk4412-fc6fc7f1b1095b92d4834e69b385b91e412a7ce5.zip | |
Merge branch 'linus' into x86/apic
Conflicts:
arch/x86/mach-default/setup.c
Semantic conflict resolution:
arch/x86/kernel/setup.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 44f15ff70c1..baba2eb5367 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -103,14 +103,12 @@ static void msix_set_enable(struct pci_dev *dev, int enable) } } -/* - * Essentially, this is ((1 << (1 << x)) - 1), but without the - * undefinedness of a << 32. - */ static inline __attribute_const__ u32 msi_mask(unsigned x) { - static const u32 mask[] = { 1, 2, 4, 0xf, 0xff, 0xffff, 0xffffffff }; - return mask[x]; + /* Don't shift by >= width of type */ + if (x >= 5) + return 0xffffffff; + return (1 << (1 << x)) - 1; } static void msix_flush_writes(struct irq_desc *desc) |