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Subject[PATCH 16/18] Renames in handle_cmdline_files() to complete generalization.
Date
Rename variables to be not initrd specific, as now the function
loads arbitrary files. This change is exclusively renames
and comment changes to reflect the generalization.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
---
drivers/firmware/efi/efi-stub-helper.c | 92 ++++++++++++++++----------------
1 file changed, 46 insertions(+), 46 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index d2d845f..e2ff076 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -11,7 +11,7 @@
*/
#define EFI_READ_CHUNK_SIZE (1024 * 1024)

-struct initrd {
+struct file_info {
efi_file_handle_t *handle;
u64 size;
};
@@ -262,10 +262,10 @@ static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,


/*
- * Check the cmdline for a LILO-style initrd= arguments.
+ * Check the cmdline for a LILO-style file= arguments.
*
- * We only support loading an initrd from the same filesystem as the
- * kernel image.
+ * We only support loading a file from the same filesystem as
+ * the kernel image.
*/
static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
efi_loaded_image_t *image,
@@ -274,19 +274,19 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
unsigned long *load_addr,
unsigned long *load_size)
{
- struct initrd *initrds;
- unsigned long initrd_addr;
+ struct file_info *files;
+ unsigned long file_addr;
efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
- u64 initrd_total;
+ u64 file_size_total;
efi_file_io_interface_t *io;
efi_file_handle_t *fh;
efi_status_t status;
- int nr_initrds;
+ int nr_files;
char *str;
int i, j, k;

- initrd_addr = 0;
- initrd_total = 0;
+ file_addr = 0;
+ file_size_total = 0;

str = cmd_line;

@@ -301,7 +301,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
if (!str || !*str)
return EFI_SUCCESS;

- for (nr_initrds = 0; *str; nr_initrds++) {
+ for (nr_files = 0; *str; nr_files++) {
str = strstr(str, option_string);
if (!str)
break;
@@ -316,21 +316,21 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
str++;
}

- if (!nr_initrds)
+ if (!nr_files)
return EFI_SUCCESS;

status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
EFI_LOADER_DATA,
- nr_initrds * sizeof(*initrds),
- &initrds);
+ nr_files * sizeof(*files),
+ &files);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table_arg, "Failed to alloc mem for file load\n");
+ efi_printk(sys_table_arg, "Failed to alloc mem for file handle list\n");
goto fail;
}

str = cmd_line;
- for (i = 0; i < nr_initrds; i++) {
- struct initrd *initrd;
+ for (i = 0; i < nr_files; i++) {
+ struct file_info *file;
efi_file_handle_t *h;
efi_file_info_t *info;
efi_char16_t filename_16[256];
@@ -345,7 +345,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,

str += strlen(option_string);

- initrd = &initrds[i];
+ file = &files[i];
p = filename_16;

/* Skip any leading slashes */
@@ -376,13 +376,13 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
image->device_handle, &fs_proto, &io);
if (status != EFI_SUCCESS) {
efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
- goto free_initrds;
+ goto free_files;
}

status = efi_call_phys2(io->open_volume, io, &fh);
if (status != EFI_SUCCESS) {
efi_printk(sys_table_arg, "Failed to open volume\n");
- goto free_initrds;
+ goto free_files;
}
}

@@ -395,7 +395,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
goto close_handles;
}

- initrd->handle = h;
+ file->handle = h;

info_sz = 0;
status = efi_call_phys4(h->get_info, h, &info_guid,
@@ -429,37 +429,37 @@ grow:
goto close_handles;
}

- initrd->size = file_sz;
- initrd_total += file_sz;
+ file->size = file_sz;
+ file_size_total += file_sz;
}

- if (initrd_total) {
+ if (file_size_total) {
unsigned long addr;

/*
- * Multiple initrd's need to be at consecutive
- * addresses in memory, so allocate enough memory for
- * all the initrd's.
+ * Multiple files need to be at consecutive addresses in memory,
+ * so allocate enough memory for all the files. This is used
+ * for loading multiple files.
*/
- status = efi_high_alloc(sys_table_arg, initrd_total, 0x1000,
- &initrd_addr, max_addr);
+ status = efi_high_alloc(sys_table_arg, file_size_total, 0x1000,
+ &file_addr, max_addr);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table_arg, "Failed to alloc highmem for initrds\n");
+ efi_printk(sys_table_arg, "Failed to alloc highmem for files\n");
goto close_handles;
}

/* We've run out of free low memory. */
- if (initrd_addr > max_addr) {
+ if (file_addr > max_addr) {
efi_printk(sys_table_arg, "We've run out of free low memory\n");
status = EFI_INVALID_PARAMETER;
- goto free_initrd_total;
+ goto free_file_total;
}

- addr = initrd_addr;
- for (j = 0; j < nr_initrds; j++) {
+ addr = file_addr;
+ for (j = 0; j < nr_files; j++) {
u64 size;

- size = initrds[j].size;
+ size = files[j].size;
while (size) {
u64 chunksize;
if (size > EFI_READ_CHUNK_SIZE)
@@ -467,36 +467,36 @@ grow:
else
chunksize = size;
status = efi_call_phys3(fh->read,
- initrds[j].handle,
+ files[j].handle,
&chunksize, addr);
if (status != EFI_SUCCESS) {
efi_printk(sys_table_arg, "Failed to read file\n");
- goto free_initrd_total;
+ goto free_file_total;
}
addr += chunksize;
size -= chunksize;
}

- efi_call_phys1(fh->close, initrds[j].handle);
+ efi_call_phys1(fh->close, files[j].handle);
}

}

- efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
+ efi_call_phys1(sys_table_arg->boottime->free_pool, files);

- *load_addr = initrd_addr;
- *load_size = initrd_total;
+ *load_addr = file_addr;
+ *load_size = file_size_total;

return status;

-free_initrd_total:
- efi_free(sys_table_arg, initrd_total, initrd_addr);
+free_file_total:
+ efi_free(sys_table_arg, file_size_total, file_addr);

close_handles:
for (k = j; k < i; k++)
- efi_call_phys1(fh->close, initrds[k].handle);
-free_initrds:
- efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
+ efi_call_phys1(fh->close, files[k].handle);
+free_files:
+ efi_call_phys1(sys_table_arg->boottime->free_pool, files);
fail:
*load_addr = 0;
*load_size = 0;
--
1.7.10.4


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