x86: ivybridge: remove unused uma_memory_size

The value of uma_memory_size depends on an undefined value
from the stack. The value of uma_memory_size is changed but
never used.

So simply remove this superfluous code.

The problem was indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c
index 643d804..1cdbe47 100644 (file)
--- a/arch/x86/cpu/ivybridge/sdram.c
+++ b/arch/x86/cpu/ivybridge/sdram.c
@@ -233,7 +233,6 @@ static int sdram_find(struct udevice *dev)
        uint32_t tseg_base, uma_size, tolud;
        uint64_t tom, me_base, touud;
        uint64_t uma_memory_base = 0;
-       uint64_t uma_memory_size;
        unsigned long long tomk;
        uint16_t ggc;
        u32 val;
@@ -298,7 +297,6 @@ static int sdram_find(struct udevice *dev)
                tolud += uma_size << 10;
                /* UMA starts at old TOLUD */
                uma_memory_base = tomk * 1024ULL;
-               uma_memory_size = uma_size * 1024ULL;
                debug("ME UMA base %llx size %uM\n", me_base, uma_size >> 10);
        }
 
@@ -312,13 +310,11 @@ static int sdram_find(struct udevice *dev)
                debug("%uM UMA", uma_size >> 10);
                tomk -= uma_size;
                uma_memory_base = tomk * 1024ULL;
-               uma_memory_size += uma_size * 1024ULL;
 
                /* GTT Graphics Stolen Memory Size (GGMS) */
                uma_size = ((ggc >> 8) & 0x3) * 1024ULL;
                tomk -= uma_size;
                uma_memory_base = tomk * 1024ULL;
-               uma_memory_size += uma_size * 1024ULL;
                debug(" and %uM GTT\n", uma_size >> 10);
        }
 
@@ -327,7 +323,6 @@ static int sdram_find(struct udevice *dev)
        uma_size = (uma_memory_base - tseg_base) >> 10;
        tomk -= uma_size;
        uma_memory_base = tomk * 1024ULL;
-       uma_memory_size += uma_size * 1024ULL;
        debug("TSEG base 0x%08x size %uM\n", tseg_base, uma_size >> 10);
 
        debug("Available memory below 4GB: %lluM\n", tomk >> 10);