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* [PATCH] Typo in include/asm-x86_64/pci-direct.h ?
@ 2004-02-12 11:01 Paul Menage
  2004-02-12 16:51 ` Andi Kleen
  0 siblings, 1 reply; 2+ messages in thread
From: Paul Menage @ 2004-02-12 11:01 UTC (permalink / raw)
  To: Andi Kleen; +Cc: linux-kernel

Hi Andi,

I noticed that the return value of read_pci_config_16() was a u8, which looks a bit suspicious. The 
only users of it are in kernel/aperture.c, and appear to work despite only getting 8 bits back, due 
to lucky circumstances. Patch applies to both 2.4 and 2.6.

Paul

--- linux/include/asm-x86_64/pci-direct.h.old	2004-02-12 02:37:53 -0800
+++ linux/include/asm-x86_64/pci-direct.h	2004-02-12 02:37:15 -0800
@@ -28,7 +28,7 @@
  	return v;
  }

-static inline u8 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset)
+static inline u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset)
  {
  	u16 v;
  	outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);



^ permalink raw reply	[flat|nested] 2+ messages in thread

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