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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2023-05-19 19:42:28 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-07-13 11:33:20 -0500 |
| commit | c00f94ad9ab0ea1560b9d98d96bfef0a9886394e (patch) | |
| tree | 2c2df77ea18b62c9a7b4bbee830b38e297df1aa8 /arch/x86/pci | |
| parent | 091f9f7f3b819434eed5c1c3acad6c7b32bf13f6 (diff) | |
| download | lwn-c00f94ad9ab0ea1560b9d98d96bfef0a9886394e.tar.gz lwn-c00f94ad9ab0ea1560b9d98d96bfef0a9886394e.zip | |
x86/PCI: Use struct_size() in pirq_convert_irt_table()
Use struct_size() instead of hand-writing it. It is less verbose, more
robust and more informative.
Link: https://lore.kernel.org/r/00a5cc2cd322e7dea26579916ac6dda9c637aa57.1684518118.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index a498b847d740..0de436316a1d 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -136,14 +136,14 @@ static inline struct irq_routing_table *pirq_convert_irt_table(u8 *addr, if (ir->signature != IRT_SIGNATURE || !ir->used || ir->size < ir->used) return NULL; - size = sizeof(*ir) + ir->used * sizeof(ir->slots[0]); + size = struct_size(ir, slots, ir->used); if (size > limit - addr) return NULL; DBG(KERN_DEBUG "PCI: $IRT Interrupt Routing Table found at 0x%lx\n", __pa(ir)); - size = sizeof(*rt) + ir->used * sizeof(rt->slots[0]); + size = struct_size(rt, slots, ir->used); rt = kzalloc(size, GFP_KERNEL); if (!rt) return NULL; |