mmc: size optimization when !CONFIG_MMC_SPI
When CONFIG_MMC_SPI is not enabled, the MMC_MODE_SPI capability can
never be set. However there is code in mmc.c which uses the
mmc_host_is_spi macro to check that capability & act accordingly. If we
expand that macro to 0 when CONFIG_MMC_SPI is not set (since it will
always be 0 at runtime anyway) then the compiler can optimize away the
SPI-specific code paths in mmc.c.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
diff --git a/include/mmc.h b/include/mmc.h
index 228d771..214b9ed 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -335,7 +335,11 @@
void mmc_set_preinit(struct mmc *mmc, int preinit);
#ifdef CONFIG_GENERIC_MMC
+#ifdef CONFIG_MMC_SPI
#define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)
+#else
+#define mmc_host_is_spi(mmc) 0
+#endif
struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
#else
int mmc_legacy_init(int verbose);