ef2d5a2ab4
Refreshed all patches. Fixes: - CVE-2020-12114 - CVE-2020-11669 Compile-tested on: pistachio Runtime-tested on: none Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
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+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
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@@ -40,7 +40,7 @@
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#include <linux/mtd/xip.h>
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#define AMD_BOOTLOC_BUG
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-#define FORCE_WORD_WRITE 0
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+#define FORCE_WORD_WRITE 1
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#define MAX_RETRIES 3
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@@ -51,7 +51,9 @@
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static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
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static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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+#if !FORCE_WORD_WRITE
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static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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+#endif
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static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
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static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
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static void cfi_amdstd_sync (struct mtd_info *);
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@@ -202,6 +204,7 @@ static void fixup_amd_bootblock(struct m
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}
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#endif
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+#if !FORCE_WORD_WRITE
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static void fixup_use_write_buffers(struct mtd_info *mtd)
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{
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struct map_info *map = mtd->priv;
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@@ -211,6 +214,7 @@ static void fixup_use_write_buffers(stru
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mtd->_write = cfi_amdstd_write_buffers;
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}
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}
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+#endif /* !FORCE_WORD_WRITE */
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/* Atmel chips don't use the same PRI format as AMD chips */
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static void fixup_convert_atmel_pri(struct mtd_info *mtd)
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@@ -1798,6 +1802,7 @@ static int cfi_amdstd_write_words(struct
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/*
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* FIXME: interleaved mode not tested, and probably not supported!
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*/
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+#if !FORCE_WORD_WRITE
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static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
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unsigned long adr, const u_char *buf,
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int len)
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@@ -1930,7 +1935,6 @@ static int __xipram do_write_buffer(stru
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return ret;
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}
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-
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static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
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size_t *retlen, const u_char *buf)
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{
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@@ -2005,6 +2009,7 @@ static int cfi_amdstd_write_buffers(stru
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return 0;
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}
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+#endif /* !FORCE_WORD_WRITE */
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/*
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* Wait for the flash chip to become ready to write data
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