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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()
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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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/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H A Dapplying-patches.rst11 This document is obsolete.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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H A D5.Posting.rst45 of your series (see the next section for more about patch series).
55 summary of the results should be included with the patch.
73 general rule, a patch should be based on the current mainline as found in
80 on the area of your patch and what is going on elsewhere, basing a patch
84 Only the most simple changes should be formatted as a single patch;
90 - The patch series you post will almost certainly not be the series of
98 patch. These changes can be small ("add a field to this structure") or
100 conceptually small and amenable to a one-line description. Each patch
105 changes in the same patch. If a single patch fixes a critical security
110 - Each patch should yield a kernel which builds and runs properly; if your
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H A Dbackporting.rst27 Applying the patch to a tree
30 Sometimes the patch you are backporting already exists as a git commit,
32 ``git cherry-pick``. However, if the patch comes from an email, as it
37 quite picky about the patch applying perfectly to your source tree. In
39 edit the patch to make it apply.
42 where the patch applies cleanly and *then* cherry-pick it over to your
46 apply a patch that just arrived on LKML to an older stable kernel, you
50 It's generally better to use the exact same base as the one the patch
53 problem with applying the patch to the "wrong" base is that it may pull
60 it less likely to apply the patch to the wrong place (which can result
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/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/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/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/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/Documentation/translations/it_IT/process/
H A D5.Posting.rst15 e di procedure per la pubblicazione delle patch; seguirle renderà la vita
26 C'è sempre una certa resistenza nel pubblicare patch finché non sono
27 veramente "pronte". Per semplici patch questo non è un problema.
37 Poche persone guarderanno delle patch che si sa essere fatte a metà,
42 Prima di creare patch
46 l'invio delle patch alla comunità di sviluppo. Queste cose includono:
56 - La vostra patch ha delle conseguenze in termini di prestazioni?
59 incluso nella patch.
70 Preparazione di una patch
73 La preparazione delle patch per la pubblicazione può richiedere una quantità
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H A Dsubmitting-patches.rst8 Inviare patch: la guida essenziale per vedere il vostro codice nel kernel
11 Una persona o un'azienda che volesse inviare una patch al kernel potrebbe
15 vostre patch accettate.
22 Per delle patch relative alle associazioni per Device Tree leggete
25 Questa documentazione assume che sappiate usare ``git`` per preparare le patch.
44 sorgenti e desiderano che le patch siano preparate basandosi su di essi.
66 singolarmente le patch dai sorgenti principali; quindi, includete tutte
87 I manutentori vi saranno grati se scrivete la descrizione della patch in un
91 Risolvete solo un problema per patch. Se la vostra descrizione inizia ad
92 essere lunga, potrebbe essere un segno che la vostra patch necessita d'essere
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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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H A Demail-clients.rst17 per applicare le patch.
19 Se siete dei novelli utilizzatori di ``git`` allora inviate la patch a voi
23 la patch alla lista di discussione più appropriata.
28 Le patch per il kernel vengono inviate per posta elettronica, preferibilmente
32 ben apprezzati perché rende più difficile citare porzioni di patch durante il
36 messaggio, sia per la patch che per qualsiasi altro messaggio. Il sito
40 I programmi di posta elettronica che vengono usati per inviare le patch per il
45 Non inviate patch con ``format=flowed``. Questo potrebbe introdurre
49 Questo può corrompere le patch.
52 testo. Le patch inviate per posta elettronica dovrebbero essere codificate in
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/linux/scripts/livepatch/
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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H A Dklp-build119 -o, --output=<file.ko> Output file [default: livepatch-<patch-name>.ko]
129 4|kmod Build patch module
299 local patch="$1"
301 grep0 -E '^(--- |\+\+\+ )' "$patch" \
309 local patch="$1"
314 get_patch_files "$patch" | mapfile -t files
323 local patch
325 for patch in "${PATCHES[@]}"; do
328 get_patch_files "$patch" | mapfile -t files
341 local patch="$1"
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/linux/sound/synth/emux/
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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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()
/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/arch/parisc/kernel/
H A Dpatch.c18 struct patch { struct
103 struct patch *patch = data; in patch_text_stop_machine() local
105 __patch_text_multiple(patch->addr, patch->insn, patch->len); in patch_text_stop_machine()
111 struct patch patch = { in patch_text() local
117 stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL); in patch_text()
123 struct patch patch = { in patch_text_multiple() local
129 stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL); in patch_text_multiple()
/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/translations/zh_CN/
H A Dhow-to.rst275 git format-patch -N
280 0001-docs-zh_CN-add-xxxxxxxx.patch
281 0002-docs-zh_CN-add-xxxxxxxx.patch
289 ./scripts/checkpatch.pl *.patch
301 git am 0001-xxxxx.patch
302 ./scripts/checkpatch.pl 0001-xxxxx.patch
307 git am 0002-xxxxx.patch
315 git format-patch -N --cover-letter --thread=shallow
320 0000-cover-letter.patch
321 0001-docs-zh_CN-add-xxxxxxxx.patch
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/linux/arch/arm/kernel/
H A Dpatch.c14 struct patch { struct
113 struct patch *patch = data; in patch_text_stop_machine() local
115 __patch_text(patch->addr, patch->insn); in patch_text_stop_machine()
122 struct patch patch = { in patch_text() local
127 stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL); in patch_text()
/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()

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