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path: root/sys/dev/pci/if_em_hw.c
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Diffstat (limited to 'sys/dev/pci/if_em_hw.c')
-rw-r--r--sys/dev/pci/if_em_hw.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/dev/pci/if_em_hw.c b/sys/dev/pci/if_em_hw.c
index b007600b646..20d9ce86f80 100644
--- a/sys/dev/pci/if_em_hw.c
+++ b/sys/dev/pci/if_em_hw.c
@@ -31,7 +31,7 @@
*******************************************************************************/
-/* $OpenBSD: if_em_hw.c,v 1.58 2010/09/19 13:10:21 yasuoka Exp $ */
+/* $OpenBSD: if_em_hw.c,v 1.59 2011/02/06 23:47:14 dlg Exp $ */
/*
* if_em_hw.c Shared functions for accessing and configuring the MAC
*/
@@ -5353,8 +5353,14 @@ em_init_eeprom_params(struct em_hw *hw)
E1000_EECD_SIZE_EX_SHIFT);
}
- eeprom->word_size = 1 <<
- (eeprom_size + EEPROM_WORD_SIZE_SHIFT);
+ /* EEPROM access above 16k is unsupported */
+ if (eeprom_size + EEPROM_WORD_SIZE_SHIFT >
+ EEPROM_WORD_SIZE_SHIFT_MAX) {
+ eeprom->word_size = 1 << EEPROM_WORD_SIZE_SHIFT_MAX;
+ } else {
+ eeprom->word_size = 1 <<
+ (eeprom_size + EEPROM_WORD_SIZE_SHIFT);
+ }
}
return ret_val;
}