exfat: fix name_hash computation on big endian systems
On-disk format for name_hash field is LE, so it must be explicitly
transformed on BE system for proper result.
Fixes: 370e812b3e
("exfat: add nls operations")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Ilya Ponetayev <i.ponetaev@ndmsystems.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
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@ -495,7 +495,7 @@ static int exfat_utf8_to_utf16(struct super_block *sb,
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struct exfat_uni_name *p_uniname, int *p_lossy)
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{
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int i, unilen, lossy = NLS_NAME_NO_LOSSY;
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unsigned short upname[MAX_NAME_LENGTH + 1];
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__le16 upname[MAX_NAME_LENGTH + 1];
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unsigned short *uniname = p_uniname->name;
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WARN_ON(!len);
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@ -519,7 +519,7 @@ static int exfat_utf8_to_utf16(struct super_block *sb,
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exfat_wstrchr(bad_uni_chars, *uniname))
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lossy |= NLS_NAME_LOSSY;
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upname[i] = exfat_toupper(sb, *uniname);
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upname[i] = cpu_to_le16(exfat_toupper(sb, *uniname));
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uniname++;
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}
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@ -597,7 +597,7 @@ static int exfat_nls_to_ucs2(struct super_block *sb,
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struct exfat_uni_name *p_uniname, int *p_lossy)
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{
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int i = 0, unilen = 0, lossy = NLS_NAME_NO_LOSSY;
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unsigned short upname[MAX_NAME_LENGTH + 1];
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__le16 upname[MAX_NAME_LENGTH + 1];
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unsigned short *uniname = p_uniname->name;
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struct nls_table *nls = EXFAT_SB(sb)->nls_io;
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@ -611,7 +611,7 @@ static int exfat_nls_to_ucs2(struct super_block *sb,
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exfat_wstrchr(bad_uni_chars, *uniname))
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lossy |= NLS_NAME_LOSSY;
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upname[unilen] = exfat_toupper(sb, *uniname);
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upname[unilen] = cpu_to_le16(exfat_toupper(sb, *uniname));
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uniname++;
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unilen++;
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}
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