[PATCH] fastboot: remove #ifdef CONFIG when it is possible

Patrick DELAUNAY patrick.delaunay at foss.st.com
Tue Jan 3 13:39:35 CET 2023


Hi,

On 12/15/22 16:40, Sean Anderson wrote:
> On 12/15/22 04:15, Patrick Delaunay wrote:
>> Much of the fastboot code predates the introduction of Kconfig and
>> has quite a few #ifdefs in it which is unnecessary now that we can use
>> IS_ENABLED() et al.
>>
>> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
>> ---
>>
>>   cmd/fastboot.c                  |  35 +++++------
>>   drivers/fastboot/fb_command.c   | 104 ++++++++++++--------------------
>>   drivers/fastboot/fb_common.c    |  11 ++--
>>   drivers/fastboot/fb_getvar.c    |  49 ++++++---------
>>   drivers/usb/gadget/f_fastboot.c |   7 +--
>>   include/fastboot.h              |  13 ----
>>   net/fastboot.c                  |   8 +--
>>   7 files changed, 82 insertions(+), 145 deletions(-)
>>
>> diff --git a/cmd/fastboot.c b/cmd/fastboot.c
>> index b498e4b22bb3..b94dbd548843 100644
>> --- a/cmd/fastboot.c
>> +++ b/cmd/fastboot.c
>> @@ -19,8 +19,14 @@
>>   static int do_fastboot_udp(int argc, char *const argv[],
>>                  uintptr_t buf_addr, size_t buf_size)
>>   {
>> -#if CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT)
>> -    int err = net_loop(FASTBOOT);
>> +    int err;
>> +
>> +    if (!CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT)) {
>> +        pr_err("Fastboot UDP not enabled\n");
>> +        return CMD_RET_FAILURE;
>> +    }
>> +
>> +    err = net_loop(FASTBOOT);
>>         if (err < 0) {
>>           printf("fastboot udp error: %d\n", err);
>> @@ -28,21 +34,21 @@ static int do_fastboot_udp(int argc, char *const 
>> argv[],
>>       }
>>         return CMD_RET_SUCCESS;
>> -#else
>> -    pr_err("Fastboot UDP not enabled\n");
>> -    return CMD_RET_FAILURE;
>> -#endif
>>   }
>>     static int do_fastboot_usb(int argc, char *const argv[],
>>                  uintptr_t buf_addr, size_t buf_size)
>>   {
>> -#if CONFIG_IS_ENABLED(USB_FUNCTION_FASTBOOT)
>>       int controller_index;
>>       char *usb_controller;
>>       char *endp;
>>       int ret;
>>   +    if (!CONFIG_IS_ENABLED(USB_FUNCTION_FASTBOOT)) {
>> +        pr_err("Fastboot USB not enabled\n");
>> +        return CMD_RET_FAILURE;
>> +    }
>> +
>>       if (argc < 2)
>>           return CMD_RET_USAGE;
>>   @@ -88,10 +94,6 @@ exit:
>>       g_dnl_clear_detach();
>>         return ret;
>> -#else
>> -    pr_err("Fastboot USB not enabled\n");
>> -    return CMD_RET_FAILURE;
>> -#endif
>>   }
>>     static int do_fastboot(struct cmd_tbl *cmdtp, int flag, int argc,
>> @@ -148,17 +150,12 @@ NXTARG:
>>       return do_fastboot_usb(argc, argv, buf_addr, buf_size);
>>   }
>>   -#ifdef CONFIG_SYS_LONGHELP
>> -static char fastboot_help_text[] =
>> +U_BOOT_CMD(
>> +    fastboot, CONFIG_SYS_MAXARGS, 1, do_fastboot,
>> +    "run as a fastboot usb or udp device",
>>       "[-l addr] [-s size] usb <controller> | udp\n"
>>       "\taddr - address of buffer used during data transfers ("
>>       __stringify(CONFIG_FASTBOOT_BUF_ADDR) ")\n"
>>       "\tsize - size of buffer used during data transfers ("
>>       __stringify(CONFIG_FASTBOOT_BUF_SIZE) ")"
>> -    ;
>> -#endif
>> -
>> -U_BOOT_CMD(
>> -    fastboot, CONFIG_SYS_MAXARGS, 1, do_fastboot,
>> -    "run as a fastboot usb or udp device", fastboot_help_text
>>   );
>> diff --git a/drivers/fastboot/fb_command.c 
>> b/drivers/fastboot/fb_command.c
>> index bdfdf262c8a3..f0fd605854da 100644
>> --- a/drivers/fastboot/fb_command.c
>> +++ b/drivers/fastboot/fb_command.c
>> @@ -31,27 +31,16 @@ static u32 fastboot_bytes_expected;
>>   static void okay(char *, char *);
>>   static void getvar(char *, char *);
>>   static void download(char *, char *);
>> -#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
>>   static void flash(char *, char *);
>>   static void erase(char *, char *);
>> -#endif
>>   static void reboot_bootloader(char *, char *);
>>   static void reboot_fastbootd(char *, char *);
>>   static void reboot_recovery(char *, char *);
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT)
>>   static void oem_format(char *, char *);
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF)
>>   static void oem_partconf(char *, char *);
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
>>   static void oem_bootbus(char *, char *);
>> -#endif
>> -
>> -#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT)
>>   static void run_ucmd(char *, char *);
>>   static void run_acmd(char *, char *);
>> -#endif
>>     static const struct {
>>       const char *command;
>> @@ -65,16 +54,14 @@ static const struct {
>>           .command = "download",
>>           .dispatch = download
>>       },
>> -#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
>>       [FASTBOOT_COMMAND_FLASH] =  {
>>           .command = "flash",
>> -        .dispatch = flash
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_FLASH, (flash), (NULL))
>>       },
>>       [FASTBOOT_COMMAND_ERASE] =  {
>>           .command = "erase",
>> -        .dispatch = erase
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_FLASH, (erase), (NULL))
>>       },
>> -#endif
>>       [FASTBOOT_COMMAND_BOOT] =  {
>>           .command = "boot",
>>           .dispatch = okay
>> @@ -103,34 +90,26 @@ static const struct {
>>           .command = "set_active",
>>           .dispatch = okay
>>       },
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT)
>>       [FASTBOOT_COMMAND_OEM_FORMAT] = {
>>           .command = "oem format",
>> -        .dispatch = oem_format,
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT, 
>> (oem_format), (NULL))
>>       },
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF)
>>       [FASTBOOT_COMMAND_OEM_PARTCONF] = {
>>           .command = "oem partconf",
>> -        .dispatch = oem_partconf,
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF, 
>> (oem_partconf), (NULL))
>>       },
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
>>       [FASTBOOT_COMMAND_OEM_BOOTBUS] = {
>>           .command = "oem bootbus",
>> -        .dispatch = oem_bootbus,
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS, 
>> (oem_bootbus), (NULL))
>>       },
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT)
>>       [FASTBOOT_COMMAND_UCMD] = {
>>           .command = "UCmd",
>> -        .dispatch = run_ucmd,
>> +        .dispatch = 
>> CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPOR_______________________________________________
>> Uboot-stm32 mailing list
>> Uboot-stm32 at st-md-mailman.stormreply.com
>> https://st-md-mailman.stormreply.com/mailman/listinfo/uboot-stm32
>> T, (run_ucmd), (NULL))
>>       },
>>       [FASTBOOT_COMMAND_ACMD] = {
>>           .command = "ACmd",
>> -        .dispatch = run_acmd,
>> +        .dispatch = CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT, 
>> (run_acmd), (NULL))
>>       },
>> -#endif
> Does this affect binary size?


Yes the size of U-Boot binary with FastBoot option is increasing with 
this patch.


because "commands[FASTBOOT_COMMAND_COUNT]"

have always the max size for known commands in U-Boot,

even for not supported commands when .dispatch ops is NULL,

and it is detected dynamically in fastboot_handle_command()

with the added trace "command %s not supported."


I don't found a better solution because in include/fastboot.h

I remove the ifdef for FASTBOOT_COMMAND_COUNT definition


Today it is not blocking, the CI build are ok,

I hope it is not a blocking problem.


>
>>   };
>>     /**
>> @@ -156,7 +135,9 @@ int fastboot_handle_command(char *cmd_string, 
>> char *response)
>>                               response);
>>                   return i;
>>               } else {
>> -                break;
>> +                pr_err("command %s not supported.\n", cmd_string);
>> +                fastboot_fail("Unsupported command", response);
>> +                return -1;
>>               }
>>           }
>>       }
>> @@ -299,7 +280,6 @@ void fastboot_data_complete(char *response)
>>       fastboot_bytes_received = 0;
>>   }


....


>>   diff --git a/include/fastboot.h b/include/fastboot.h
>> index 57daaf129821..d062a3469ef9 100644
>> --- a/include/fastboot.h
>> +++ b/include/fastboot.h
>> @@ -24,10 +24,8 @@
>>   enum {
>>       FASTBOOT_COMMAND_GETVAR = 0,
>>       FASTBOOT_COMMAND_DOWNLOAD,
>> -#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
>>       FASTBOOT_COMMAND_FLASH,
>>       FASTBOOT_COMMAND_ERASE,
>> -#endif
>>       FASTBOOT_COMMAND_BOOT,
>>       FASTBOOT_COMMAND_CONTINUE,
>>       FASTBOOT_COMMAND_REBOOT,
>> @@ -35,20 +33,11 @@ enum {
>>       FASTBOOT_COMMAND_REBOOT_FASTBOOTD,
>>       FASTBOOT_COMMAND_REBOOT_RECOVERY,
>>       FASTBOOT_COMMAND_SET_ACTIVE,
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT)
>>       FASTBOOT_COMMAND_OEM_FORMAT,
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF)
>>       FASTBOOT_COMMAND_OEM_PARTCONF,
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
>>       FASTBOOT_COMMAND_OEM_BOOTBUS,
>> -#endif
>> -#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT)
>>       FASTBOOT_COMMAND_ACMD,
>>       FASTBOOT_COMMAND_UCMD,
>> -#endif
>> -
>>       FASTBOOT_COMMAND_COUNT
>>   };
>>   @@ -173,7 +162,5 @@ void fastboot_data_download(const void 
>> *fastboot_data,
>>    */
>>   void fastboot_data_complete(char *response);
>>   -#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT)
>>   void fastboot_acmd_complete(void);
>> -#endif
>>   #endif /* _FASTBOOT_H_ */
>> diff --git a/net/fastboot.c b/net/fastboot.c
>> index 139233b86c61..96bdf5486fa6 100644
>> --- a/net/fastboot.c
>> +++ b/net/fastboot.c
>> @@ -42,7 +42,6 @@ static int fastboot_our_port;
>>     static void boot_downloaded_image(void);
>>   -#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
>>   /**
>>    * fastboot_udp_send_info() - Send an INFO packet during long 
>> commands.
>>    *
>> @@ -104,7 +103,6 @@ static void fastboot_timed_send_info(const char 
>> *msg)
>>           fastboot_udp_send_info(msg);
>>       }
>>   }
>> -#endif
>>     /**
>>    * fastboot_send() - Sends a packet in response to received 
>> fastboot packet
>> @@ -309,9 +307,9 @@ void fastboot_start_server(void)
>>         fastboot_our_port = CONFIG_UDP_FUNCTION_FASTBOOT_PORT;
>>   -#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
>> -    fastboot_set_progress_callback(fastboot_timed_send_info);
>> -#endif
>> +    if (CONFIG_IS_ENABLED(FASTBOOT_FLASH))
>> + fastboot_set_progress_callback(fastboot_timed_send_info);
>> +
>>       net_set_udp_handler(fastboot_handler);
>>         /* zero out server ether in case the server ip has changed */
> Reviewed-by: Sean Anderson <sean.anderson at seco.com>

regards

Patrick



More information about the U-Boot mailing list