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spi: loopback-test: Do not split 1024-byte hexdumps

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[ Upstream commit a73fa3690a1f3014d6677e368dce4e70767a6ba2 ]

spi_test_print_hex_dump() prints buffers holding less than 1024 bytes in
full.  Larger buffers are truncated: only the first 512 and the last 512
bytes are printed, separated by a truncation message.  The latter is
confusing in case the buffer holds exactly 1024 bytes, as all data is
printed anyway.

Fix this by printing buffers holding up to and including 1024 bytes in
full.

Fixes: 84e0c4e5e2 ("spi: add loopback test driver to allow for spi_master regression tests")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/37ee1bc90c6554c9347040adabf04188c8f704aa.1746184171.git.geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geert Uytterhoeven
2025-05-02 13:10:35 +02:00
committed by Greg Kroah-Hartman
parent a6879a076b
commit b8084e8135
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-loopback-test.c
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@@ -421,7 +421,7 @@ MODULE_LICENSE("GPL");
static void spi_test_print_hex_dump(char *pre, const void *ptr, size_t len)
{
/* limit the hex_dump */
if (len < 1024) {
if (len <= 1024) {
print_hex_dump(KERN_INFO, pre,
DUMP_PREFIX_OFFSET, 16, 1,
ptr, len, 0);