[coreboot-gerrit] New patch to review for coreboot: 4216224 southbridge/intel/i82801ix/lpc.c: Remove unused variable `dummy`
Paul Menzel (paulepanter@users.sourceforge.net)
gerrit at coreboot.org
Mon Oct 21 09:38:13 CEST 2013
Paul Menzel (paulepanter at users.sourceforge.net) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3982
-gerrit
commit 42162246f0185ecf8148f6a6a986b743e3a19837
Author: Paul Menzel <paulepanter at users.sourceforge.net>
Date: Mon Oct 21 09:28:19 2013 +0200
southbridge/intel/i82801ix/lpc.c: Remove unused variable `dummy`
Removing `-Wno-unused-but-set-variable` from `CFLAGS` the build for
QEMU Q35 and Roda RK9, both using the Intel 82801Ix southbridge, fail
with the following error.
src/southbridge/intel/i82801ix/lpc.c: In function 'i82801ix_enable_apic':
src/southbridge/intel/i82801ix/lpc.c:45:5: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Removing `dummy` should be safe as GCC probably optimizes it away before
anyway. That no dummy variable is used for an RCBA [1] access in Intel
Lynx Point supports that this can be dropped safely.
[1] root complex base address
[2] src/southbridge/intel/lynxpoint/early_pch.c
Change-Id: I1c138a3498228dbd025f68d5e6af0acc29ed3460
Signed-off-by: Paul Menzel <paulepanter at users.sourceforge.net>
---
src/southbridge/intel/i82801ix/lpc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/southbridge/intel/i82801ix/lpc.c b/src/southbridge/intel/i82801ix/lpc.c
index fb0dd56..bea0d98 100644
--- a/src/southbridge/intel/i82801ix/lpc.c
+++ b/src/southbridge/intel/i82801ix/lpc.c
@@ -42,7 +42,6 @@ typedef struct southbridge_intel_i82801ix_config config_t;
static void i82801ix_enable_apic(struct device *dev)
{
- u8 dummy;
u32 reg32;
volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR);
volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10);
@@ -50,7 +49,7 @@ static void i82801ix_enable_apic(struct device *dev)
/* Enable IOAPIC. Keep APIC Range Select at zero. */
RCBA8(0x31ff) = 0x03;
/* We have to read 0x31ff back if bit0 changed. */
- dummy = RCBA8(0x31ff);
+ RCBA8(0x31ff);
/* Lock maximum redirection entries (MRE), R/WO register. */
*ioapic_index = 0x01;
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