public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

exfat: Simplify exfat_utf8_d_cmp() for code points above U+FFFF

Browse source 
If two Unicode code points represented in UTF-16 are different then also
their UTF-32 representation must be different. Therefore conversion from
UTF-32 to UTF-16 is not needed.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
This commit is contained in:
Pali Rohár 2020-03-17 22:34:33 +01:00 • committed by Namjae Jeon
parent 3d77e6a880
commit 197298a649
1 changed files with 2 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
fs/exfat/namei.c
View file

@ -185,14 +185,9 @@ static int exfat_utf8_d_cmp(const struct dentry *dentry, unsigned int len,
if (u_a <= 0xFFFF && u_b <= 0xFFFF) { if (u_a <= 0xFFFF && u_b <= 0xFFFF) {
if (exfat_toupper(sb, u_a) != exfat_toupper(sb, u_b)) if (exfat_toupper(sb, u_a) != exfat_toupper(sb, u_b))
return 1; return 1;
} else if (u_a > 0xFFFF && u_b > 0xFFFF) {
if (exfat_low_surrogate(u_a) !=
exfat_low_surrogate(u_b) ||
exfat_high_surrogate(u_a) !=
exfat_high_surrogate(u_b))
return 1;
} else { } else {
return 1; if (u_a != u_b)
return 1;
} }
} }