From: Jani Nikula <jani.nikula@intel.com> To: dri-devel@lists.freedesktop.org Cc: Jani Nikula <jani.nikula@intel.com>, intel-gfx@lists.freedesktop.org, Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Subject: [PATCH v2 4/6] drm/edid: use a temp variable for sads to drop one level of dereferences Date: Tue, 31 Oct 2023 12:16:41 +0200 [thread overview] Message-ID: <b6e2f295ae5491c2bb0f528508f0f5fca921dc77.1698747331.git.jani.nikula@intel.com> (raw) In-Reply-To: <cover.1698747331.git.jani.nikula@intel.com> Use a temporary variable struct cea_sad *, instead of using struct cea_sad ** directly with the double dereferences. It's arguably easier on the eyes, and drops a set of parenthesis too. Cc: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> --- drivers/gpu/drm/drm_edid.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 8be0f26702b5..c0d50082b504 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5594,7 +5594,7 @@ static void drm_edid_to_eld(struct drm_connector *connector, } static int _drm_edid_to_sad(const struct drm_edid *drm_edid, - struct cea_sad **sads) + struct cea_sad **psads) { const struct cea_db *db; struct cea_db_iter iter; @@ -5603,19 +5603,21 @@ static int _drm_edid_to_sad(const struct drm_edid *drm_edid, cea_db_iter_edid_begin(drm_edid, &iter); cea_db_iter_for_each(db, &iter) { if (cea_db_tag(db) == CTA_DB_AUDIO) { + struct cea_sad *sads; int j; count = cea_db_payload_len(db) / 3; /* SAD is 3B */ - *sads = kcalloc(count, sizeof(**sads), GFP_KERNEL); - if (!*sads) + sads = kcalloc(count, sizeof(*sads), GFP_KERNEL); + *psads = sads; + if (!sads) return -ENOMEM; for (j = 0; j < count; j++) { const u8 *sad = &db->data[j * 3]; - (*sads)[j].format = (sad[0] & 0x78) >> 3; - (*sads)[j].channels = sad[0] & 0x7; - (*sads)[j].freq = sad[1] & 0x7F; - (*sads)[j].byte2 = sad[2]; + sads[j].format = (sad[0] & 0x78) >> 3; + sads[j].channels = sad[0] & 0x7; + sads[j].freq = sad[1] & 0x7F; + sads[j].byte2 = sad[2]; } break; } -- 2.39.2
WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@intel.com> To: dri-devel@lists.freedesktop.org Cc: Jani Nikula <jani.nikula@intel.com>, intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH v2 4/6] drm/edid: use a temp variable for sads to drop one level of dereferences Date: Tue, 31 Oct 2023 12:16:41 +0200 [thread overview] Message-ID: <b6e2f295ae5491c2bb0f528508f0f5fca921dc77.1698747331.git.jani.nikula@intel.com> (raw) In-Reply-To: <cover.1698747331.git.jani.nikula@intel.com> Use a temporary variable struct cea_sad *, instead of using struct cea_sad ** directly with the double dereferences. It's arguably easier on the eyes, and drops a set of parenthesis too. Cc: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> --- drivers/gpu/drm/drm_edid.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 8be0f26702b5..c0d50082b504 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5594,7 +5594,7 @@ static void drm_edid_to_eld(struct drm_connector *connector, } static int _drm_edid_to_sad(const struct drm_edid *drm_edid, - struct cea_sad **sads) + struct cea_sad **psads) { const struct cea_db *db; struct cea_db_iter iter; @@ -5603,19 +5603,21 @@ static int _drm_edid_to_sad(const struct drm_edid *drm_edid, cea_db_iter_edid_begin(drm_edid, &iter); cea_db_iter_for_each(db, &iter) { if (cea_db_tag(db) == CTA_DB_AUDIO) { + struct cea_sad *sads; int j; count = cea_db_payload_len(db) / 3; /* SAD is 3B */ - *sads = kcalloc(count, sizeof(**sads), GFP_KERNEL); - if (!*sads) + sads = kcalloc(count, sizeof(*sads), GFP_KERNEL); + *psads = sads; + if (!sads) return -ENOMEM; for (j = 0; j < count; j++) { const u8 *sad = &db->data[j * 3]; - (*sads)[j].format = (sad[0] & 0x78) >> 3; - (*sads)[j].channels = sad[0] & 0x7; - (*sads)[j].freq = sad[1] & 0x7F; - (*sads)[j].byte2 = sad[2]; + sads[j].format = (sad[0] & 0x78) >> 3; + sads[j].channels = sad[0] & 0x7; + sads[j].freq = sad[1] & 0x7F; + sads[j].byte2 = sad[2]; } break; } -- 2.39.2
next prev parent reply other threads:[~2023-10-31 10:17 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-10-31 10:16 [PATCH v2 0/6] drm/edid: split out drm_eld.[ch], add some SAD helpers Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:16 ` [PATCH v2 1/6] drm/edid: split out drm_eld.h from drm_edid.h Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:16 ` [PATCH v2 2/6] drm/eld: replace uint8_t with u8 Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:16 ` [PATCH v2 3/6] drm/edid: include drm_eld.h only where required Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:16 ` Jani Nikula [this message] 2023-10-31 10:16 ` [Intel-gfx] [PATCH v2 4/6] drm/edid: use a temp variable for sads to drop one level of dereferences Jani Nikula 2023-10-31 10:16 ` [PATCH v2 5/6] drm/edid: add helpers to get/set struct cea_sad from/to 3-byte sad Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:16 ` [PATCH v2 6/6] drm/eld: add helpers to modify the SADs of an ELD Jani Nikula 2023-10-31 10:16 ` [Intel-gfx] " Jani Nikula 2023-10-31 10:21 ` Golani, Mitulkumar Ajitkumar 2023-10-31 10:21 ` [Intel-gfx] " Golani, Mitulkumar Ajitkumar 2023-10-31 20:29 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/edid: split out drm_eld.[ch], add some SAD helpers (rev2) Patchwork 2023-10-31 20:29 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork 2023-10-31 20:43 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork 2023-11-02 9:04 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork 2023-11-02 9:35 ` [PATCH v2 0/6] drm/edid: split out drm_eld.[ch], add some SAD helpers Jani Nikula 2023-11-02 9:35 ` [Intel-gfx] " Jani Nikula 2023-11-09 15:33 ` Jani Nikula
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