libpayload: Add const for dma_coherent argument
Add the const modifier for the ptr argument of dma_coherent to avoid
unnecessary type casting in payloads.
BUG=none
TEST=emerge-corsola libpayload
BRANCH=none
Change-Id: Ic4bb1d8318c7e83fd3ab3054aa0333cb27afe588
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Hsin-Te Yuan <yuanhsinte@google.com>
diff --git a/payloads/libpayload/include/stdlib.h b/payloads/libpayload/include/stdlib.h
index 18f1dca..ac386c1 100644
--- a/payloads/libpayload/include/stdlib.h
+++ b/payloads/libpayload/include/stdlib.h
@@ -136,7 +136,7 @@
void init_dma_memory(void *start, u32 size);
int dma_initialized(void);
-int dma_coherent(void *ptr);
+int dma_coherent(const void *ptr);
static inline void *xmalloc_work(size_t size, const char *file,
const char *func, int line)
diff --git a/payloads/libpayload/libc/malloc.c b/payloads/libpayload/libc/malloc.c
index 20f9ef3..f94f33e 100644
--- a/payloads/libpayload/libc/malloc.c
+++ b/payloads/libpayload/libc/malloc.c
@@ -118,7 +118,7 @@
}
/* For boards that don't initialize DMA we assume all locations are coherent */
-int dma_coherent(void *ptr)
+int dma_coherent(const void *ptr)
{
return !dma_initialized() || (dma->start <= ptr && dma->end > ptr);
}