RISC-V: Remove identity_translate from load_elf

When load_elf is called with NULL as an argument to the
address translate callback, it does an identity translation.
This commit removes the redundant identity_translate callback.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NMichael Clark <mjc@sifive.com>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>

hw/riscv/sifive_e.c

@@ -82,16 +82,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len)
     }
 }
 
-static uint64_t identity_translate(void *opaque, uint64_t addr)
-{
-    return addr;
-}
-
 static uint64_t load_kernel(const char *kernel_filename)
 {
     uint64_t kernel_entry, kernel_high;
 
-    if (load_elf(kernel_filename, identity_translate, NULL,
+    if (load_elf(kernel_filename, NULL, NULL,
                  &kernel_entry, NULL, &kernel_high,
                  0, ELF_MACHINE, 1, 0) < 0) {
         error_report("qemu: could not load kernel '%s'", kernel_filename);

hw/riscv/sifive_u.c

@@ -68,16 +68,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len)
     }
 }
 
-static uint64_t identity_translate(void *opaque, uint64_t addr)
-{
-    return addr;
-}
-
 static uint64_t load_kernel(const char *kernel_filename)
 {
     uint64_t kernel_entry, kernel_high;
 
-    if (load_elf(kernel_filename, identity_translate, NULL,
+    if (load_elf(kernel_filename, NULL, NULL,
                  &kernel_entry, NULL, &kernel_high,
                  0, ELF_MACHINE, 1, 0) < 0) {
         error_report("qemu: could not load kernel '%s'", kernel_filename);

hw/riscv/spike.c

@@ -59,16 +59,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len)
     }
 }
 
-static uint64_t identity_translate(void *opaque, uint64_t addr)
-{
-    return addr;
-}
-
 static uint64_t load_kernel(const char *kernel_filename)
 {
     uint64_t kernel_entry, kernel_high;
 
-    if (load_elf_ram_sym(kernel_filename, identity_translate, NULL,
+    if (load_elf_ram_sym(kernel_filename, NULL, NULL,
             &kernel_entry, NULL, &kernel_high, 0, ELF_MACHINE, 1, 0,
             NULL, true, htif_symbol_callback) < 0) {
         error_report("qemu: could not load kernel '%s'", kernel_filename);

hw/riscv/virt.c

@@ -62,16 +62,11 @@ static void copy_le32_to_phys(hwaddr pa, uint32_t *rom, size_t len)
     }
 }
 
-static uint64_t identity_translate(void *opaque, uint64_t addr)
-{
-    return addr;
-}
-
 static uint64_t load_kernel(const char *kernel_filename)
 {
     uint64_t kernel_entry, kernel_high;
 
-    if (load_elf(kernel_filename, identity_translate, NULL,
+    if (load_elf(kernel_filename, NULL, NULL,
                  &kernel_entry, NULL, &kernel_high,
                  0, ELF_MACHINE, 1, 0) < 0) {
         error_report("qemu: could not load kernel '%s'", kernel_filename);