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authorLinus Torvalds <torvalds@linux-foundation.org>2020-11-27 10:38:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-11-27 10:38:36 -0800
commit43d6ecd97c0c69acffc918cc18cdabdfcaa55354 (patch)
tree62c04188c3f92e1fa85172872a6d587d0a07ac26 /kernel/printk
parent5b4049d8fc8353c20493f3767a1270a61bcc3822 (diff)
parent739e7116b10bf8694795ed8365dd7cbe089b662a (diff)
Merge tag 'printk-for-5.10-rc6-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk fixes from Petr Mladek: - do not lose trailing newline in pr_cont() calls - two trivial fixes for a dead store and a config description * tag 'printk-for-5.10-rc6-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printk: finalize records with trailing newlines printk: remove unneeded dead-store assignment init/Kconfig: Fix CPU number in LOG_CPU_MAX_BUF_SHIFT description
Diffstat (limited to 'kernel/printk')
-rw-r--r--kernel/printk/printk.c4
-rw-r--r--kernel/printk/printk_ringbuffer.c2
2 files changed, 2 insertions, 4 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index fe64a49344bf..bc1e3b5a97bd 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -528,8 +528,8 @@ static int log_store(u32 caller_id, int facility, int level,
if (dev_info)
memcpy(&r.info->dev_info, dev_info, sizeof(r.info->dev_info));
- /* insert message */
- if ((flags & LOG_CONT) || !(flags & LOG_NEWLINE))
+ /* A message without a trailing newline can be continued. */
+ if (!(flags & LOG_NEWLINE))
prb_commit(&e);
else
prb_final_commit(&e);
diff --git a/kernel/printk/printk_ringbuffer.c b/kernel/printk/printk_ringbuffer.c
index 6b1525685277..74e25a1704f2 100644
--- a/kernel/printk/printk_ringbuffer.c
+++ b/kernel/printk/printk_ringbuffer.c
@@ -882,8 +882,6 @@ static bool desc_reserve(struct printk_ringbuffer *rb, unsigned long *id_out)
head_id = atomic_long_read(&desc_ring->head_id); /* LMM(desc_reserve:A) */
do {
- desc = to_desc(desc_ring, head_id);
-
id = DESC_ID(head_id + 1);
id_prev_wrap = DESC_ID_PREV_WRAP(desc_ring, id);