The quilt patch titled Subject: kernel: remove get_task_comm() and print task comm directly has been removed from the -mm tree. Its filename was kernel-remove-get_task_comm-and-print-task-comm-directly.patch This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Yafang Shao <laoar.shao@xxxxxxxxx> Subject: kernel: remove get_task_comm() and print task comm directly Date: Thu, 19 Dec 2024 10:34:48 +0800 Patch series "Remove get_task_comm() and print task comm directly", v2. Since task->comm is guaranteed to be NUL-terminated, we can print it directly without the need to copy it into a separate buffer. This simplifies the code and avoids unnecessary operations. This patch (of 5): Since task->comm is guaranteed to be NUL-terminated, we can print it directly without the need to copy it into a separate buffer. This simplifies the code and avoids unnecessary operations. Link: https://lkml.kernel.org/r/20241219023452.69907-1-laoar.shao@xxxxxxxxx Link: https://lkml.kernel.org/r/20241219023452.69907-2-laoar.shao@xxxxxxxxx Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> Cc: Serge Hallyn <serge@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Darren Hart <dvhart@xxxxxxxxxxxxx> Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx> Cc: "André Almeida" <andrealmeid@xxxxxxxxxx> Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx> Cc: Kalle Valo <kvalo@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Petr Mladek <pmladek@xxxxxxxx> Cc: Danilo Krummrich <dakr@xxxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Cc: David Airlie <airlied@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: James Morris <jmorris@xxxxxxxxx> Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> Cc: Jiri Slaby <jirislaby@xxxxxxxxxx> Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Cc: Karol Herbst <kherbst@xxxxxxxxxx> Cc: Kees Cook <kees@xxxxxxxxxx> Cc: Lyude Paul <lyude@xxxxxxxxxx> Cc: Oded Gabbay <ogabbay@xxxxxxxxxx> Cc: Paul Moore <paul@xxxxxxxxxxxxxx> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> Cc: Simona Vetter <simona@xxxxxxxx> Cc: Tvrtko Ursulin <tursulin@xxxxxxxxxxx> Cc: Vineet Gupta <vgupta@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/capability.c | 8 ++------ kernel/futex/waitwake.c | 3 +-- 2 files changed, 3 insertions(+), 8 deletions(-) --- a/kernel/capability.c~kernel-remove-get_task_comm-and-print-task-comm-directly +++ a/kernel/capability.c @@ -38,10 +38,8 @@ __setup("no_file_caps", file_caps_disabl static void warn_legacy_capability_use(void) { - char name[sizeof(current->comm)]; - pr_info_once("warning: `%s' uses 32-bit capabilities (legacy support in use)\n", - get_task_comm(name, current)); + current->comm); } /* @@ -62,10 +60,8 @@ static void warn_legacy_capability_use(v static void warn_deprecated_v2(void) { - char name[sizeof(current->comm)]; - pr_info_once("warning: `%s' uses deprecated v2 capabilities in a way that may be insecure\n", - get_task_comm(name, current)); + current->comm); } /* --- a/kernel/futex/waitwake.c~kernel-remove-get_task_comm-and-print-task-comm-directly +++ a/kernel/futex/waitwake.c @@ -210,13 +210,12 @@ static int futex_atomic_op_inuser(unsign if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) { if (oparg < 0 || oparg > 31) { - char comm[sizeof(current->comm)]; /* * kill this print and return -EINVAL when userspace * is sane again */ pr_info_ratelimited("futex_wake_op: %s tries to shift op by %d; fix this program\n", - get_task_comm(comm, current), oparg); + current->comm, oparg); oparg &= 31; } oparg = 1 << oparg; _ Patches currently in -mm which might be from laoar.shao@xxxxxxxxx are