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path: root/target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch
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Diffstat (limited to 'target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch')
-rw-r--r--target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch90
1 files changed, 0 insertions, 90 deletions
diff --git a/target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch b/target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch
deleted file mode 100644
index 6ab072883d..0000000000
--- a/target/linux/generic/backport-5.10/800-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 0a24b51a3264a3f942a75025ea5ff6133c8989b0 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Mon, 8 Mar 2021 10:03:17 +0100
-Subject: [PATCH] firmware: bcm47xx_nvram: add helper checking for NVRAM
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This avoids duplicating code doing casting and checking for NVRAM magic.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- drivers/firmware/broadcom/bcm47xx_nvram.c | 30 ++++++++++++++---------
- 1 file changed, 18 insertions(+), 12 deletions(-)
-
---- a/drivers/firmware/broadcom/bcm47xx_nvram.c
-+++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
-@@ -34,14 +34,20 @@ static char nvram_buf[NVRAM_SPACE];
- static size_t nvram_len;
- static const u32 nvram_sizes[] = {0x6000, 0x8000, 0xF000, 0x10000};
-
-+/**
-+ * bcm47xx_nvram_is_valid - check for a valid NVRAM at specified memory
-+ */
-+static bool bcm47xx_nvram_is_valid(void __iomem *nvram)
-+{
-+ return ((struct nvram_header *)nvram)->magic == NVRAM_MAGIC;
-+}
-+
- static u32 find_nvram_size(void __iomem *end)
- {
-- struct nvram_header __iomem *header;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
-- header = (struct nvram_header *)(end - nvram_sizes[i]);
-- if (header->magic == NVRAM_MAGIC)
-+ if (bcm47xx_nvram_is_valid(end - nvram_sizes[i]))
- return nvram_sizes[i];
- }
-
-@@ -55,6 +61,7 @@ static int bcm47xx_nvram_find_and_copy(v
- {
- struct nvram_header __iomem *header;
- size_t flash_size;
-+ size_t offset;
- u32 size;
-
- if (nvram_len) {
-@@ -68,31 +75,30 @@ static int bcm47xx_nvram_find_and_copy(v
- /* Windowed flash access */
- size = find_nvram_size(flash_start + flash_size);
- if (size) {
-- header = (struct nvram_header *)(flash_start + flash_size - size);
-+ offset = flash_size - size;
- goto found;
- }
- flash_size <<= 1;
- }
-
- /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
-- header = (struct nvram_header *)(flash_start + 4096);
-- if (header->magic == NVRAM_MAGIC) {
-- size = NVRAM_SPACE;
-+
-+ offset = 4096;
-+ if (bcm47xx_nvram_is_valid(flash_start + offset))
- goto found;
-- }
-
-- header = (struct nvram_header *)(flash_start + 1024);
-- if (header->magic == NVRAM_MAGIC) {
-- size = NVRAM_SPACE;
-+ offset = 1024;
-+ if (bcm47xx_nvram_is_valid(flash_start + offset))
- goto found;
-- }
-
- pr_err("no nvram found\n");
- return -ENXIO;
-
- found:
-+ header = (struct nvram_header *)(flash_start + offset);
- __ioread32_copy(nvram_buf, header, sizeof(*header) / 4);
- nvram_len = ((struct nvram_header *)(nvram_buf))->len;
-+ size = res_size - offset;
- if (nvram_len > size) {
- pr_err("The nvram size according to the header seems to be bigger than the partition on flash\n");
- nvram_len = size;