diff mbox series

[U-Boot,v2,2/4] env: move more common code to env_import_redund

Message ID 20180131134713.11566-3-sgoldschmidt@de.pepperl-fuchs.com
State Accepted
Delegated to: Tom Rini
Headers show
Series env: cleanups after adding multiple envs | expand

Commit Message

Simon Goldschmidt Jan. 31, 2018, 1:47 p.m. UTC 
There is more common code in mmc, nand and ubi env drivers that
can be shared by moving to env_import_redund.

For this, a status/error value whether the buffers were loaded
are passed as additional parameters to env_import_redund.
Ideally, these are already returned to the env driver by the
storage driver. This is the case for mmc, nand and ubi, so for
this change, code deduplicated.

Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
---
 env/common.c          | 21 ++++++++++++++++++++-
 env/mmc.c             | 23 ++---------------------
 env/nand.c            | 22 +++-------------------
 env/ubi.c             | 18 +++++++++---------
 include/environment.h |  3 ++-
 5 files changed, 36 insertions(+), 51 deletions(-)

Comments

Maxime Ripard Jan. 31, 2018, 3:39 p.m. UTC | #1 
On Wed, Jan 31, 2018 at 02:47:11PM +0100, Simon Goldschmidt wrote:
> There is more common code in mmc, nand and ubi env drivers that
> can be shared by moving to env_import_redund.
> 
> For this, a status/error value whether the buffers were loaded
> are passed as additional parameters to env_import_redund.
> Ideally, these are already returned to the env driver by the
> storage driver. This is the case for mmc, nand and ubi, so for
> this change, code deduplicated.
> 
> Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>

Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Thanks!
Maxime
Tom Rini Feb. 1, 2018, 1:09 p.m. UTC | #2 
On Wed, Jan 31, 2018 at 02:47:11PM +0100, Simon Goldschmidt wrote:

> There is more common code in mmc, nand and ubi env drivers that
> can be shared by moving to env_import_redund.
> 
> For this, a status/error value whether the buffers were loaded
> are passed as additional parameters to env_import_redund.
> Ideally, these are already returned to the env driver by the
> storage driver. This is the case for mmc, nand and ubi, so for
> this change, code deduplicated.
> 
> Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Applied to u-boot/master, thanks!
diff mbox series

Patch

diff --git a/env/common.c b/env/common.c
index 363ba6fead..f21ff70096 100644
--- a/env/common.c
+++ b/env/common.c
@@ -138,7 +138,8 @@  int env_import(const char *buf, int check)
 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
 static unsigned char env_flags;
 
-int env_import_redund(const char *buf1, const char *buf2)
+int env_import_redund(const char *buf1, int buf1_read_fail,
+		      const char *buf2, int buf2_read_fail)
 {
 	int crc1_ok, crc2_ok;
 	env_t *ep, *tmp_env1, *tmp_env2;
@@ -146,6 +147,24 @@  int env_import_redund(const char *buf1, const char *buf2)
 	tmp_env1 = (env_t *)buf1;
 	tmp_env2 = (env_t *)buf2;
 
+	if (buf1_read_fail && buf2_read_fail) {
+		puts("*** Error - No Valid Environment Area found\n");
+	} else if (buf1_read_fail || buf2_read_fail) {
+		puts("*** Warning - some problems detected ");
+		puts("reading environment; recovered successfully\n");
+	}
+
+	if (buf1_read_fail && buf2_read_fail) {
+		set_default_env("!bad env area");
+		return -EIO;
+	} else if (!buf1_read_fail && buf2_read_fail) {
+		gd->env_valid = ENV_VALID;
+		return env_import((char *)tmp_env1, 1);
+	} else if (buf1_read_fail && !buf2_read_fail) {
+		gd->env_valid = ENV_REDUND;
+		return env_import((char *)tmp_env2, 1);
+	}
+
 	crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) ==
 			tmp_env1->crc;
 	crc2_ok = crc32(0, tmp_env2->data, ENV_SIZE) ==
diff --git a/env/mmc.c b/env/mmc.c
index 528fbf9781..8847fdc7e2 100644
--- a/env/mmc.c
+++ b/env/mmc.c
@@ -290,27 +290,8 @@  static int env_mmc_load(void)
 	read1_fail = read_env(mmc, CONFIG_ENV_SIZE, offset1, tmp_env1);
 	read2_fail = read_env(mmc, CONFIG_ENV_SIZE, offset2, tmp_env2);
 
-	if (read1_fail && read2_fail)
-		puts("*** Error - No Valid Environment Area found\n");
-	else if (read1_fail || read2_fail)
-		puts("*** Warning - some problems detected "
-		     "reading environment; recovered successfully\n");
-
-	if (read1_fail && read2_fail) {
-		errmsg = "!bad CRC";
-		ret = -EIO;
-		goto fini;
-	} else if (!read1_fail && read2_fail) {
-		gd->env_valid = ENV_VALID;
-		env_import((char *)tmp_env1, 1);
-	} else if (read1_fail && !read2_fail) {
-		gd->env_valid = ENV_REDUND;
-		env_import((char *)tmp_env2, 1);
-	} else {
-		env_import_redund((char *)tmp_env1, (char *)tmp_env2);
-	}
-
-	ret = 0;
+	ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
+				read2_fail);
 
 fini:
 	fini_mmc_for_env(mmc);
diff --git a/env/nand.c b/env/nand.c
index 8058b55c50..3e8df39c26 100644
--- a/env/nand.c
+++ b/env/nand.c
@@ -320,7 +320,7 @@  static int env_nand_load(void)
 #if defined(ENV_IS_EMBEDDED)
 	return 0;
 #else
-	int read1_fail = 0, read2_fail = 0;
+	int read1_fail, read2_fail;
 	env_t *tmp_env1, *tmp_env2;
 	int ret = 0;
 
@@ -336,24 +336,8 @@  static int env_nand_load(void)
 	read1_fail = readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1);
 	read2_fail = readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2);
 
-	if (read1_fail && read2_fail)
-		puts("*** Error - No Valid Environment Area found\n");
-	else if (read1_fail || read2_fail)
-		puts("*** Warning - some problems detected "
-		     "reading environment; recovered successfully\n");
-
-	if (read1_fail && read2_fail) {
-		set_default_env("!bad env area");
-		goto done;
-	} else if (!read1_fail && read2_fail) {
-		gd->env_valid = ENV_VALID;
-		env_import((char *)tmp_env1, 1);
-	} else if (read1_fail && !read2_fail) {
-		gd->env_valid = ENV_REDUND;
-		env_import((char *)tmp_env2, 1);
-	} else {
-		env_import_redund((char *)tmp_env1, (char *)tmp_env2);
-	}
+	ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
+				read2_fail);
 
 done:
 	free(tmp_env1);
diff --git a/env/ubi.c b/env/ubi.c
index 1c4653d4f6..c222ebc784 100644
--- a/env/ubi.c
+++ b/env/ubi.c
@@ -95,6 +95,7 @@  static int env_ubi_load(void)
 {
 	ALLOC_CACHE_ALIGN_BUFFER(char, env1_buf, CONFIG_ENV_SIZE);
 	ALLOC_CACHE_ALIGN_BUFFER(char, env2_buf, CONFIG_ENV_SIZE);
+	int read1_fail, read2_fail;
 	env_t *tmp_env1, *tmp_env2;
 
 	/*
@@ -118,21 +119,20 @@  static int env_ubi_load(void)
 		return -EIO;
 	}
 
-	if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1,
-			    CONFIG_ENV_SIZE)) {
+	read1_fail = ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1,
+				     CONFIG_ENV_SIZE));
+	if (read1_fail)
 		printf("\n** Unable to read env from %s:%s **\n",
 		       CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
-	}
 
-	if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND, (void *)tmp_env2,
-			    CONFIG_ENV_SIZE)) {
+	read2_fail = ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND,
+				     (void *)tmp_env2, CONFIG_ENV_SIZE));
+	if (read2_fail)
 		printf("\n** Unable to read redundant env from %s:%s **\n",
 		       CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME_REDUND);
-	}
 
-	env_import_redund((char *)tmp_env1, (char *)tmp_env2);
-
-	return 0;
+	return env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
+							 read2_fail);
 }
 #else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
 static int env_ubi_load(void)
diff --git a/include/environment.h b/include/environment.h
index a4060506fa..6044b9e1b4 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -297,7 +297,8 @@  int env_export(env_t *env_out);
 
 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
 /* Select and import one of two redundant environments */
-int env_import_redund(const char *buf1, const char *buf2);
+int env_import_redund(const char *buf1, int buf1_status,
+		      const char *buf2, int buf2_status);
 #endif
 
 /**