diff options
| author | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2025-06-19 08:37:27 +0200 |
|---|---|---|
| committer | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2025-06-19 10:55:50 +0200 |
| commit | 3bb604cef85fb366931a777a20579cc7c24b6c5c (patch) | |
| tree | 855a4c90b2b093047060d9a5c5888a27e68e54cd /lib/string.c | |
| parent | 1e78582cc49cd07d726ea073178625c1cbbed013 (diff) | |
| parent | 58485ff1a74f6c5be9e7c6aafb7293e4337348e7 (diff) | |
Merge tag 'v6.1.141' into toradex_ti-linux-6.1.y
This is the 6.1.141 stable release
Conflicts:
drivers/spi/spi-cadence-quadspi.c
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Diffstat (limited to 'lib/string.c')
| -rw-r--r-- | lib/string.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/string.c b/lib/string.c index 3371d26a0e39..c4b8349ff058 100644 --- a/lib/string.c +++ b/lib/string.c @@ -181,6 +181,7 @@ ssize_t strscpy(char *dest, const char *src, size_t count) if (count == 0 || WARN_ON_ONCE(count > INT_MAX)) return -E2BIG; +#ifndef CONFIG_DCACHE_WORD_ACCESS #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS /* * If src is unaligned, don't cross a page boundary, @@ -196,11 +197,13 @@ ssize_t strscpy(char *dest, const char *src, size_t count) if (((long) dest | (long) src) & (sizeof(long) - 1)) max = 0; #endif +#endif /* - * read_word_at_a_time() below may read uninitialized bytes after the - * trailing zero and use them in comparisons. Disable this optimization - * under KMSAN to prevent false positive reports. + * load_unaligned_zeropad() or read_word_at_a_time() below may read + * uninitialized bytes after the trailing zero and use them in + * comparisons. Disable this optimization under KMSAN to prevent + * false positive reports. */ if (IS_ENABLED(CONFIG_KMSAN)) max = 0; @@ -208,7 +211,11 @@ ssize_t strscpy(char *dest, const char *src, size_t count) while (max >= sizeof(unsigned long)) { unsigned long c, data; +#ifdef CONFIG_DCACHE_WORD_ACCESS + c = load_unaligned_zeropad(src+res); +#else c = read_word_at_a_time(src+res); +#endif if (has_zero(c, &data, &constants)) { data = prep_zero_mask(c, data, &constants); data = create_zero_mask(data); |