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/linux/kernel/livepatch/
H A Dcore.c106 static struct klp_object *klp_find_object(struct klp_patch *patch, in klp_find_object() argument
111 klp_for_each_object(patch, obj) { in klp_find_object()
359 static int __klp_disable_patch(struct klp_patch *patch);
364 struct klp_patch *patch; in enabled_store() local
372 patch = container_of(kobj, struct klp_patch, kobj); in enabled_store()
376 if (patch->enabled == enabled) { in enabled_store()
389 if (patch == klp_transition_patch) in enabled_store()
392 ret = __klp_disable_patch(patch); in enabled_store()
407 struct klp_patch *patch; in enabled_show() local
409 patch = container_of(kobj, struct klp_patch, kobj); in enabled_show()
[all …]
H A Dstate.c15 #define klp_for_each_state(patch, state) \ argument
16 for (state = patch->states; state && state->id; state++)
31 struct klp_state *klp_get_state(struct klp_patch *patch, unsigned long id) in klp_get_state() argument
35 klp_for_each_state(patch, state) { in klp_get_state()
66 struct klp_patch *patch; in klp_get_prev_state() local
72 klp_for_each_patch(patch) { in klp_get_prev_state()
73 if (patch == klp_transition_patch) in klp_get_prev_state()
76 state = klp_get_state(patch, id); in klp_get_prev_state()
87 static bool klp_is_state_compatible(struct klp_patch *patch, in klp_is_state_compatible() argument
92 state = klp_get_state(patch, old_state->id); in klp_is_state_compatible()
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H A Dtransition.c14 #include "patch.h"
65 * We allow to patch also functions where RCU is not watching,
78 * The transition to the target patch state is complete. Clean up the data
106 * from this patch on the ops->func_stack. Otherwise, after in klp_complete_transition()
170 * patch state. in klp_cancel_transition()
251 * Determine whether it's safe to transition the task to the target patch state in klp_check_stack_func()
301 * Try to safely switch a task to the target patch state. If it's currently in klp_check_and_switch_task()
323 * functions. If all goes well, switch the task to the target patch in klp_try_switch_task()
423 * Try to switch all remaining tasks to the target patch state by walking the in klp_send_signals()
428 * If any tasks are still stuck in the initial patch stat in klp_send_signals()
455 struct klp_patch *patch; klp_try_complete_transition() local
573 klp_init_transition(struct klp_patch * patch,int state) klp_init_transition() argument
729 struct klp_patch *patch; klp_force_transition() local
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H A Dcore.h10 #define klp_for_each_patch_safe(patch, tmp_patch) \ argument
11 list_for_each_entry_safe(patch, tmp_patch, &klp_patches, list)
13 #define klp_for_each_patch(patch) \ argument
14 list_for_each_entry(patch, &klp_patches, list)
16 void klp_free_patch_async(struct klp_patch *patch);
/linux/scripts/
H A Dpatch-kernel62 PNAME=patch-kernel
73 patch directory defaults to the current directory,
92 echo "cannot find patch file: ${patch}"
149 if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir
171 if $uncomp ${patchdir}/"$1"${ext} | patch -p1 -Rs -N -E -d $sourcedir
242 patch="patch-${CURRENTFULLVERSION}"
243 findFile $patchdir/${patch} || noFile ${patch}
244 reversePatch ${patch} || exit 1
272 patch=patch-$FULLVERSION
274 findFile $patchdir/${patch} || noFile ${patch}
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/linux/Documentation/process/
H A Dapplying-patches.rst11 This document is obsolete. In most cases, rather than using ``patch``
15 a patch to the kernel or, more specifically, what base kernel a patch for
24 What is a patch?
27 A patch is a small text document containing a delta of changes between two
31 To correctly apply a patch you need to know what base it was generated from
32 and what new version the patch will change the source tree into. These
33 should both be present in the patch file metadata or be possible to deduce
37 How do I apply or revert a patch?
40 You apply a patch with the ``patch`` program. The patch program reads a diff
41 (or patch) file and makes the changes to the source tree described in it.
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H A Dsubmitting-patches.rst48 Describe your problem. Whether your patch is a one-line bug fix or
77 The maintainer will thank you if you write your patch description in a
81 Solve only one problem per patch. If your description starts to get
82 long, that's a sign that you probably need to split up your patch.
85 When you submit or resubmit a patch or patch series, include the
86 complete patch description and justification for it. Don't just
87 say that this is version N of the patch (series). Don't expect the
88 subsystem maintainer to refer back to earlier patch versions or referenced
89 URLs to find the patch description and put that into the patch.
90 I.e., the patch (series) and its description should be self-contained.
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/linux/sound/drivers/opl3/
H A Dopl3_synth.c245 struct fm_patch *patch; in snd_opl3_load_patch() local
248 patch = snd_opl3_find_patch(opl3, prog, bank, 1); in snd_opl3_load_patch()
249 if (!patch) in snd_opl3_load_patch()
252 patch->type = type; in snd_opl3_load_patch()
255 patch->inst.op[i].am_vib = data[AM_VIB + i]; in snd_opl3_load_patch()
256 patch->inst.op[i].ksl_level = data[KSL_LEVEL + i]; in snd_opl3_load_patch()
257 patch->inst.op[i].attack_decay = data[ATTACK_DECAY + i]; in snd_opl3_load_patch()
258 patch->inst.op[i].sustain_release = data[SUSTAIN_RELEASE + i]; in snd_opl3_load_patch()
259 patch->inst.op[i].wave_select = data[WAVE_SELECT + i]; in snd_opl3_load_patch()
261 patch->inst.feedback_connection[0] = data[CONNECTION]; in snd_opl3_load_patch()
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/linux/Documentation/translations/pt_BR/process/
H A Dapplying-patches.rst11 Este documento está obsoleto. Na maioria dos casos, em vez de usar ``patch``
15 an patch ao kernel ou, mais especificamente, a qual kernel base um patch para
27 Um patch é um pequeno documento de texto que contém uma diferença (delta) de
31 Para aplicar um patch corretamente, você precisa saber de qual base ele foi
32 gerado e em qual nova versão o patch transformará a árvore de código-fonte.
33 Ambas as informações devem estar presentes nos metadados do arquivo de patch
37 Como eu aplico ou reverto um patch?
40 Você aplica um patch com o programa ``patch``. O programa patch lê um arquivo
41 de diff (ou patch) e faz as alterações descritas nele na árvore de
47 Isso significa que os caminhos para os arquivos dentro do arquivo de patch
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H A D5.Posting.rst58 resumo dos resultados deve ser incluído junto ao patch.
76 regra geral, um patch deve ser baseado no mainline atual encontrado na árvore
83 amplos. Dependendo da área do seu patch e do que está acontecendo em outros
84 lugares, basear um patch contra essas outras árvores pode exigir uma quantidade
87 Apenas as alterações mais simples devem ser formatadas como um único patch; tudo
100 - Cada alteração logicamente independente deve ser formatada como um patch separado.
104 patch deve fazer uma alteração específica que possa ser revisada por si só e
108 alterações no mesmo patch. Se um único patch corrige uma falha crítica de
112 - Cada patch deve resultar em um kernel que compile e funcione corretamente; se
122 tornou a pessoa mais popular na lista de discussão do kernel. Um único patch
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/linux/arch/xtensa/kernel/
H A Djump_label.c26 struct patch { struct
41 struct patch *patch = data; in patch_text_stop_machine() local
43 if (atomic_inc_return(&patch->cpu_count) == num_online_cpus()) { in patch_text_stop_machine()
44 local_patch_text(patch->addr, patch->data, patch->sz); in patch_text_stop_machine()
45 atomic_inc(&patch->cpu_count); in patch_text_stop_machine()
47 while (atomic_read(&patch->cpu_count) <= num_online_cpus()) in patch_text_stop_machine()
49 __invalidate_icache_range(patch->addr, patch->sz); in patch_text_stop_machine()
57 struct patch patch = { in patch_text() local
64 &patch, cpu_online_mask); in patch_text()
/linux/scripts/livepatch/
H A Dklp-build34 FIX_PATCH_LINES="$SCRIPT_DIR/fix-patch-lines"
134 -o, --output=<file.ko> Output file [default: livepatch-<patch-name>.ko]
145 5|kmod Build patch module
160 local patch
241 for patch in "${PATCHES[@]}"; do
242 [[ -f "$patch" ]] || die "$patch doesn't exist"
295 # name based on the patch name.
303 NAME="patch"
312 # Hardcode the value printed by the localversion script to prevent patch
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H A Dinit.c12 static struct klp_patch *patch; variable
31 patch = kzalloc_obj(*patch); in livepatch_mod_init()
32 if (!patch) { in livepatch_mod_init()
70 patch->mod = THIS_MODULE; in livepatch_mod_init()
71 patch->objs = objs; in livepatch_mod_init()
76 patch->replace = false; in livepatch_mod_init()
78 patch->replace = true; in livepatch_mod_init()
81 return klp_enable_patch(patch); in livepatch_mod_init()
86 kfree(patch); in livepatch_mod_init()
95 klp_for_each_object_static(patch, obj) in livepatch_mod_exit()
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/linux/scripts/coccinelle/api/
H A Dstring_choices.cocci6 virtual patch
10 @str_plural depends on patch@
21 @str_plural_r depends on !patch@
38 @str_up_down depends on patch disable neg_if_exp@
44 @str_up_down_r depends on !patch disable neg_if_exp@
57 @str_down_up depends on patch disable neg_if_exp@
63 @str_down_up_r depends on !patch disable neg_if_exp@
76 @str_true_false depends on patch disable neg_if_exp@
82 @str_true_false_r depends on !patch disable neg_if_exp@
95 @str_false_true depends on patch disable neg_if_exp@
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/linux/sound/synth/emux/
H A Demux_hwdep.c23 struct soundfont_patch_info patch; in snd_emux_hwdep_load_patch() local
25 if (copy_from_user(&patch, arg, sizeof(patch))) in snd_emux_hwdep_load_patch()
28 if (patch.key == GUS_PATCH) in snd_emux_hwdep_load_patch()
30 patch.len + sizeof(patch)); in snd_emux_hwdep_load_patch()
32 if (patch.type >= SNDRV_SFNT_LOAD_INFO && in snd_emux_hwdep_load_patch()
33 patch.type <= SNDRV_SFNT_PROBE_DATA) { in snd_emux_hwdep_load_patch()
35 patch.len + sizeof(patch), in snd_emux_hwdep_load_patch()
41 return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch)); in snd_emux_hwdep_load_patch()
H A Dsoundfont.c90 struct soundfont_patch_info patch; in snd_soundfont_load() local
93 if (count < (long)sizeof(patch)) { in snd_soundfont_load()
97 if (copy_from_user(&patch, data, sizeof(patch))) in snd_soundfont_load()
100 count -= sizeof(patch); in snd_soundfont_load()
101 data += sizeof(patch); in snd_soundfont_load()
103 if (patch.key != SNDRV_OSS_SOUNDFONT_PATCH) { in snd_soundfont_load()
104 dev_err(card->dev, "The wrong kind of patch %x\n", patch.key); in snd_soundfont_load()
107 if (count < patch.len) { in snd_soundfont_load()
109 count, patch.len); in snd_soundfont_load()
112 if (patch.len < 0) { in snd_soundfont_load()
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/linux/Documentation/ABI/testing/
H A Dsysfs-kernel-livepatch9 each loaded live patch module.
11 What: /sys/kernel/livepatch/<patch>
16 The patch directory contains subdirectories for each kernel
19 What: /sys/kernel/livepatch/<patch>/enabled
25 code is currently applied. Writing 0 will disable the patch
26 while writing 1 will re-enable the patch.
28 What: /sys/kernel/livepatch/<patch>/transition
33 An attribute which indicates whether the patch is currently in
36 What: /sys/kernel/livepatch/<patch>/force
45 use this feature without a clearance from a patch
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/linux/Documentation/livepatch/
H A Dcallbacks.rst5 Livepatch (un)patch-callbacks provide a mechanism for livepatch modules
16 In most cases, (un)patch callbacks will need to be used in conjunction
26 patch.
39 * Pre-patch
42 * Post-patch
48 active), used to clean up post-patch callback
54 used to cleanup pre-patch callback resources
61 symmetry: pre-patch callbacks have a post-unpatch counterpart and
62 post-patch callbacks have a pre-unpatch counterpart. An unpatch
63 callback will only be executed if its corresponding patch callback was
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/linux/Documentation/translations/zh_CN/
H A Dhow-to.rst278 git format-patch -1
282 0001-docs-zh_CN-add-xxxxxxxx.patch
286 git format-patch -N
291 0001-docs-zh_CN-add-xxxxxxxx.patch
292 0002-docs-zh_CN-add-xxxxxxxx.patch
300 ./scripts/checkpatch.pl *.patch
311 git am 0001-xxxxx.patch
312 ./scripts/checkpatch.pl 0001-xxxxx.patch
331 git format-patch -N --cover-letter --thread=shallow
336 0000-cover-letter.patch
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/linux/Documentation/translations/it_IT/process/
H A Dstable-kernel-rules.rst11 Regole sul tipo di patch che vengono o non vengono accettate nei sorgenti
14 - Questa patch o una equivalente deve esistere già nei sorgenti principali di
40 Procedura per sottomettere patch per i sorgenti -stable
44 Una patch di sicurezza non dovrebbe essere gestita (solamente) dal processo
50 1. Aggiungi un'etichetta 'stable' alla descrizione della patch al momento della
52 2. Chiedere alla squadra "stable" di prendere una patch già applicata sui
54 3. Sottomettere una patch alla squadra "stable" equivalente ad una modifica già
62 L':ref:`it_option_3` è un'alternativa ai due metodi precedenti quando la patch
79 Aggiungete la seguente etichetta nell'area delle firme per far sì che una patch
91 Una volta che la patch è stata inclusa, verrà applicata anche sui sorgenti
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/linux/scripts/coccinelle/misc/
H A Dsecs_to_jiffies.cocci12 virtual patch
16 @pconst depends on patch@ constant C; @@
21 @pconstms depends on patch@ constant C; @@
26 @pexpr depends on patch@ expression E; @@
31 @pexprms depends on patch@ expression E; @@
36 @r depends on report && !patch@
52 @c depends on context && !patch@
/linux/tools/testing/selftests/livepatch/test_modules/
H A Dtest_klp_state.c32 static struct klp_patch patch; variable
38 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in allocate_loglevel_state()
55 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in fix_console_loglevel()
68 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in restore_console_loglevel()
80 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in free_loglevel_state()
141 static struct klp_patch patch = { variable
150 return klp_enable_patch(&patch); in test_klp_callbacks_demo_init()
H A Dtest_klp_state2.c32 static struct klp_patch patch; variable
45 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in allocate_loglevel_state()
62 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in fix_console_loglevel()
90 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in restore_console_loglevel()
109 loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE); in free_loglevel_state()
170 static struct klp_patch patch = { variable
179 return klp_enable_patch(&patch); in test_klp_callbacks_demo_init()
/linux/Documentation/translations/it_IT/arch/riscv/
H A Dpatch-acceptance.rst3 :Original: :doc:`../../../../arch/riscv/patch-acceptance`
28 RISC-V ha un'istanza di patchwork dov'è possibile controllare lo stato delle patch:
32 Se la vostra patch non appare nella vista predefinita, i manutentori di RISC-V
37 e collaudando le patch man mano che arrivano. Il processo applica le patch al
39 questo a seconda che la patch sia stata o meno individuata come correzione. In
41 stata applicata una serie di patch sarà annotato su patchwork. È improbabile che
42 vengano applicate Le patch che non passano i controlli, nella maggior parte dei
45 In aggiunta alla lista delle verifiche da fare prima di inviare una patch
48 Accetteremo le patch per un nuovo modulo o estensione se la fondazione
57 prestazioni, accetteremo patch solo per quelle estensioni che sono
/linux/arch/riscv/kernel/
H A Dpatch.c254 struct patch_insn *patch = data; in patch_text_cb() local
257 if (atomic_inc_return(&patch->cpu_count) == num_online_cpus()) { in patch_text_cb()
258 ret = patch_insn_write(patch->addr, patch->insns, patch->len); in patch_text_cb()
266 atomic_inc_return_release(&patch->cpu_count); in patch_text_cb()
268 while (atomic_read(&patch->cpu_count) <= num_online_cpus()) in patch_text_cb()
281 struct patch_insn patch = { in patch_text() local
298 ret = stop_machine_cpuslocked(patch_text_cb, &patch, cpu_online_mask); in patch_text()

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