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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>
This commit is contained in:
Paul Burton 2013-09-04 16:12:26 +01:00 committed by Pantelis Antoniou
parent 5619682664
commit 8687d5c80c
1 changed files with 4 additions and 0 deletions
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4
include/mmc.h
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@ -335,7 +335,11 @@ int mmc_start_init(struct mmc *mmc);
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);